Database Info

Better GPS Navigation Software

Hello xda-developers
I was wonder why there isn't a better GPS navigation software for Windows Mobile cellphones (more preferably a newer one like the HTC Touch Pro)?
There is Google Maps which is fantastic but it has two shortcomings:
1. Doesn't have any sort of voice guidance
2. Doesn't reroute when you get off your path.
I've also found Google Navigator but after installing the trial version I found it to be very buggy and hasn't been updated for a few months now. Also costs $60! For that cost I can just go ahead an buy a dedicated GPS for about $40 more.
So I ask: Is there anything better in the works? Possibly an open(!) source project? Or a better presented and cheaper solution?

the best navigation software aren't free.. but there are workarounds obviously
try tomtom, or igo i love them

or try nav4all... free until 2010 and turn by turn voice direction

Hm Navi4all didn't seem to want to get any GPS sats, also seemed slow.
Nav N Go (IGo?) seems to be a european only product?
Tomtom looks like it might be worth its salt though

IGo is not European only...there is a North America version.... I love IGo after being turned on to it by a friend of mine (who also helped me with my first flash ---- props to Kareem9NBA).... text to voice, easy interface.
Before that, I used INav which I loved.....

I personally love tomtom. and its free if you know where to find it.

I'd go for Igo. I am from Europe and it has really good data even in eastern european countries, but TomTom is really good too. I think you should compare these two and just use the one that's faster/better for you.
Remember, we have PHONES that have GPS and you can't expect them to work like a GPS-only device. It's the same with the camera - no camera-phone performs as well as a standard digital camera (not even mentioning SLRs) and no GPS enabled phone will ever work as well as a GPS-only device. Correct me if I'm wrong.

...
I dunno....Garmin Mobile XT works pretty damn well on my fuze. My friend has a dedicated garmin and mine can do more than his can cause our phones have internet access.

And with the update to Garmin from their website, the POI database is just about never out of date - it includes a Google Search function to look up points of interest.

navigon ( http://www.navigon.com/site/de/de/products/navigation_software/windowsmobile_pda )
is excelent like tomtom - you have the possibility to check before you buy it (30 days)

+1 for Igo8 (from the company Nav N Go). European company, but when you use NavTeq's USA maps, works perfect.
Advantages are real TTS (Text to Speech) (i.e., speaks actual street names), 3D buildings in major cities, ability to add POI databases, logos show onscreen for POIs, etc.
A dedicated GPS does work a bit better. But how often do you have that in your pocket when you need it on the spur of the moment???

Depends on what works best for your phone really. Some programs will lag on one persons phone and then not lag at all on anothers....from what I've read around the forum anyway. I've tried a lot of GPS software and I can tell you that...
Garmin Mobile XT has a great UI and excellent maps. Very easy to use and works. Only problem is GPS lag (shows me about 200ft behind my actual position).
TomTom works great. I don't think the UI is anywhere nearly as nice as Garmin's or as user-friendly. But I hardly get any GPS lag using TomTom and if you can keep the maps updated then you should be just fine. This is what I use now.
I've tried IGO8 and Amigo. Amigo wouldn't find the built-in GPS on my phone but looked pretty nice. I didn't get a chance to test it out much because it wouldn't work, sadly....and I didn't feel like trying to make it work lol. IGO8 is great if you can get the right version. I think I had the EU version because I couldn't change KM/hr to M/hr and I was thoroughly annoyed by that. IGO8 did give a little lag, but not as bad as it was with Garmin. What turned me away from IGO was that damn KM/hr thing. I looked up how to fix it for a grand total of half an hour before I gave up and deleted it lol.
All that being said, I like TomTom. I would absolutely 100% delete TomTom and go with Garmin if I didn't experience the lag. It's just that annoying to me. But if you don't experience lag with Garmin I'd go with that.

another vote for igo
used tomtom on my wizard but I really like the UI on IGo on my serra, the custom skins that are available and the use of a sys.txt to set up a lot of preferences in the software. Lots of web resources out there for these things.
used EU and US mapping and found them both to be very good
you can add POI's in google earth kml format and the software converts them at start up - very handy but large numbers of POI's can course the software to have slow response times at start up

Does anyone use their GPS without a data connection ie: using stored maps? I tried to mess around with mgmaps for a few days but never got it to work.

eimerej77 said:
Does anyone use their GPS without a data connection ie: using stored maps? I tried to mess around with mgmaps for a few days but never got it to work.
Click to expand...
Click to collapse
IGO will work without data connection (flight mode on). Obviously, you need to have the program AND maps on your phone. Tomtom will not do the same. Even though it does not need any data connection, it will not establish GPS connection in flight mode. It will work if you turn data or cell radio on, even if there is no connection available (i.e. another country). Not sure about other programs.
Hope that helps.
Mike

yeah perfect. I skipped the data plan (use the nodata cab), so I just use wifi when I can and was trying to find a way to get gps on the road, storing the maps on my micro sd card. I'll look in to it!

doctajay said:
I personally love tomtom. and its free if you know where to find it.
Click to expand...
Click to collapse
yup... and yup

Where is TomTom free?
Hello,
Can anyone please let me know where I can find free TOMTOM Software/maps to download to my touchpro?
Thanks
Satish

Warez is not allowed on xda.

TomTom looks interesting however I don't think Navigator 7 has any USA maps (but their Navigator 6 does). Seems to be a product tailored more towards the European crowd

Google Maps good enough as GPS?

My D2 came preinstalled with google maps. I find it pretty cool.
Why do I need another GPS software such as TomTom 7?
Is it purely for navigation (such as in a car)? Also which software would you recommend?

Why do I need another GPS software such as TomTom 7?
Click to expand...
Click to collapse
What happens when you're lost somewhere and can't get a 2G/3G signal??

well , a full featured Navigation system will provide a lot of extra features, and is usually faster - unless you have HSDPA
just compare them (youtube videos) with google maps and youll see the differnce

cencored said:
My D2 came preinstalled with google maps. I find it pretty cool.
Why do I need another GPS software such as TomTom 7?
Is it purely for navigation (such as in a car)? Also which software would you recommend?
Click to expand...
Click to collapse
I have a stand alone GPS. I've owned TomTom and iGuidance for my phone. I use Google Maps for everything and never touch the others. It does not have all the fancy bells and whistles but to me it's much better. Everything is always up to date. You can get walking directions. You can see street view. You can see satellite view. It does not take up any room on your memory. It's free and always updated.
Between Google Maps and Windows Live Search (Bing.com), I have no need for a paid GPS program.

WMguy said:
I have a stand alone GPS. I've owned TomTom and iGuidance for my phone. I use Google Maps for everything and never touch the others. It does not have all the fancy bells and whistles but to me it's much better. Everything is always up to date. You can get walking directions. You can see street view. You can see satellite view. It does not take up any room on your memory. It's free and always updated.
Between Google Maps and Windows Live Search (Bing.com), I have no need for a paid GPS program.
Click to expand...
Click to collapse
Ditto! No need for anything else.

I think it depends on the region of the world you are travelling in.
Google maps is totally useless here in Japan, and it has limited use in Europe (my opinion) while in US it might replace TomTom or Garmin or ...
I needed Garmin and a special map for Japan, because with Google there is no routing possible here.

Does your Google Maps speak to you? Give you turn by turn directions?

mrmckeb said:
Does your Google Maps speak to you? Give you turn by turn directions?
Click to expand...
Click to collapse
No it doesn't speak, but I can read, and yes it gives turn by turn directions. I have a speaking Garmin, and I spent most of my time reading with it, to help get where I was going.
With street view you can see exactly what the building or place looks like that your going to, I have even seen the front of my house.
Really the only draw back is, you need a good data plan, but I have that for other reasons, so for me that's not an issue.

I'm using Garmin XT and it's much faster (significantly less lag) than Google Maps with 3G...

I have to agree that Google Maps is superb, with its satellite and street views. But, is the TD2 3G radio in combination with a typical network really good enough for serious standalone GPS replacement?
Even in London there are very many weak coverage spots where data transfer hardly works (unless you're willing to hold the phone high in the air, not a "cool" sight!). In the countryside there are huge regions with very little 3G coverage and minimal 2G coverage.

For walking Google Maps is fine, you've got plenty of time to look at it and decide where you want to go, but for driving Google Maps it too slow, as it has to update the maps via download and too small a view to be glanced at while driving, all the dedicated SatNav Driving programs are fast, don't reply on a data connection (which will drop out) and give big clear directions which you only have to glance at, and not take your eyes off the road for too long.

Lots of good points here. I am currently overseas and really need some free gps guidance, so google maps is a nono. I have switched off internet access via my provider completely to avoid horror bills.
So I am looking for a reliable gps software particularly for walking, so it needs to have pedestrian function.
Any recommendations?
Garmin, TomTom, ...??

cencored said:
Lots of good points here. I am currently overseas and really need some free gps guidance, so google maps is a nono. I have switched off internet access via my provider completely to avoid horror bills.
So I am looking for a reliable gps software particularly for walking, so it needs to have pedestrian function.
Any recommendations?
Garmin, TomTom, ...??
Click to expand...
Click to collapse
Where are you? For Asia there is not a lot of possibilities. MapKing is one, GarminXT with some special local maps (in english) the other.

harolds said:
No it doesn't speak, but I can read, and yes it gives turn by turn directions. I have a speaking Garmin, and I spent most of my time reading with it, to help get where I was going.
With street view you can see exactly what the building or place looks like that your going to, I have even seen the front of my house.
Really the only draw back is, you need a good data plan, but I have that for other reasons, so for me that's not an issue.
Click to expand...
Click to collapse
Using Google Maps when you are abroad could be a real pain unless you buy local SIM Card .

Google Maps cannot, and I repeat, cannot be used as a GPS in the car. Google Maps even shows this warning when installed.

TyKH said:
Google Maps cannot, and I repeat, cannot be used as a GPS in the car. Google Maps even shows this warning when installed.
Click to expand...
Click to collapse
Have to agree with u there, tried using it once in a car and got completely lost. you need TURN BY TURN DIRECTIONS FOR IT TO WORK AS A NAVIGATION SYSTEM.

Google Navigator
Have a look at Google Navigator. It solves the problems mentioned above:
you can go online _or_ download a map for a region before starting your trip.
cu
André

Google Maps Navigation

I just wanted to throw this out.
My family day-tripped to upstate New York yesterday, and relied solely on My Fresh'd Hero's Google Maps Navigation.
Flawless !!
I am totally blown away by it's capabilities, and wonder how on earth Garmin, Tom Tom etc are going to compete with this. It's stunning.
Anyway, that's my little shill for Google over.
Have a nice day everyone.

I am loving Google Navigation way more than Sprint's Navigation app. All the standalone navigation units are. definitly going to have problems competing with this. Doing a street view of a address before actually going there is fantastic too. Having a visual picture of the place your going on top having gps is a killer combo.

thatjerk said:
I am loving Google Navigation way more than Sprint's Navigation app. All the standalone navigation units are. definitly going to have problems competing with this. Doing a street view of a address before actually going there is fantastic too. Having a visual picture of the place your going on top having gps is a killer combo.
Click to expand...
Click to collapse
I agree, the street view when you arrive at the destination is a great feature! I also love being able to use the satellite view as opposed the plain map view.
There's basically two areas where the standalone units still have a large advantage. The first is obviously screen size, and the second is at least for now the text-to-speech used by google nav really sucks. It would be nice to see google implement something better for that.
In theory, Google should have a big advantage as far as keeping current with new roads, but they don't seem to stay on top of that. My wife used to work at a hotel in a fairly new area of town, and it took almost 3 years before Google Maps would accurately route people to the correct location.

I also love Google Nav but i have noticed that it does not seem to be as accurate as Sprint Nav.

I still love the Sprint Nav(TeleNav) the best. For me, seems like the rerouting is much quicker than Google Nav

subliminalurge said:
I agree, the street view when you arrive at the destination is a great feature! I also love being able to use the satellite view as opposed the plain map view.
There's basically two areas where the standalone units still have a large advantage. The first is obviously screen size, and the second is at least for now the text-to-speech used by google nav really sucks. It would be nice to see google implement something better for that.
In theory, Google should have a big advantage as far as keeping current with new roads, but they don't seem to stay on top of that. My wife used to work at a hotel in a fairly new area of town, and it took almost 3 years before Google Maps would accurately route people to the correct location.
Click to expand...
Click to collapse
In my experience all navigation units/prog rams have problems with being up to date on new locations.
+1 Google or some other developer needs to come up with a sexy
text-to-speech voice.

I love Google Nav satellite view and integration into Maps. However, I love the nav parts of Sprint Nav for voice and clear directions and traffic rerouting.
If Google can incorporate the pros of Sprint Nav, they would have an unbeatable solution. Though free for ALL Android 2.1+ phones is ultimately quite unbeatable itself.
Ceger

google nav is the cats meow......until you go into a deal cell zone. Opps no more navigation. while I now utilize google nav more than my copilot app or tomtom I still rely on those when going into a dead zone where google is useless.

If your using google navigation , then goto the market and download NavLauncher by mad cow solutions. App is awesome has a favorites list or you can even add loctions for contacts. Then when you click on any favorite or contact it launches directions in google navigation for that location.

Can Do That Already!
bob2300nx said:
If your using google navigation , then goto the market and download NavLauncher by mad cow solutions. App is awesome has a favorites list or you can even add loctions for contacts. Then when you click on any favorite or contact it launches directions in google navigation for that location.
Click to expand...
Click to collapse
You can do that 'now' by going to contacts and clicking on address google nav comes up for nav directions if you want!

Google Nav is the ****! But im confused, what does your phone being Fresh'd have to do with Google Nav? You do know Google Nav works on Damage's Rom as well as any other 2.1 OS out there....

VinceOB said:
Google Nav is the ****! But im confused, what does your phone being Fresh'd have to do with Google Nav? You do know Google Nav works on Damage's Rom as well as any other 2.1 OS out there....
Click to expand...
Click to collapse
I imagine he was just pointing out that he was using that particular rom and not suggesting he was able to use Google Nav only because of Fresh.

scmobileman said:
I imagine he was just pointing out that he was using that particular rom and not suggesting he was able to use Google Nav only because of Fresh.
Click to expand...
Click to collapse
Probably, but it doesnt really matter what rom he was using so the point of pointing that out is moot.

bob2300nx said:
If your using google navigation , then goto the market and download NavLauncher by mad cow solutions. App is awesome has a favorites list or you can even add loctions for contacts. Then when you click on any favorite or contact it launches directions in google navigation for that location.
Click to expand...
Click to collapse
I don't know how many people know this, but you can also create direct shortcuts that you can place on your home screens.
Click the plus button, then Shortut, then Directions & Navigation. Then you can type in an address, contact name, etc. and name it whatever you want. You can even pick from several different icons (home, work, etc) and place it wherever on your home screen.
It's awesome to be able to click one button to navigate home or to work.

ziggy682 said:
I don't know how many people know this, but you can also create direct shortcuts that you can place on your home screens.
Click the plus button, then Shortut, then Directions & Navigation. Then you can type in an address, contact name, etc. and name it whatever you want. You can even pick from several different icons (home, work, etc) and place it wherever on your home screen.
It's awesome to be able to click one button to navigate home or to work.
Click to expand...
Click to collapse
Yea, I think they added that feature in the newest 4.1.1 build. Its pretty sweet!

TomTom, Garmin, Etc can compete very easily.
Without network coverage you can't use google maps. I've been several places without network coverage with my old phone and tomtom saved me. Earlier this month I was in San Francisco trying to get somewhere and my network completely dropped on me. Made my life hell for the 15 minutes it took to get back working (still no idea as why).
With network coverage though, Google Navigation is awesome though!

Where do I get this APP from?
I have google maps... is this a feature in google maps?

The text to speech may not be the greatest, but I do find it better to set to english-uk, I think the voice is easier on the ears.
Sent from my HERO200 using the XDA mobile application powered by Tapatalk

Other than the left/right thing
I've used Google Nav for several trips since rooting my phone a month or so ago. It's great, agree with everyone there, except for one small dyslexic problem.
Sometimes, it simply doesn't know left from right. I was pulling up to a hotel, had the picture showing the hotel on the right side of the street, saw the hotel on the right side of the street, and listened to the phone tell me my destination was on the left. Gave the wife and I a laugh, because I can't remember the last time I had a dyslexic computer.

amot said:
Where do I get this APP from?
I have google maps... is this a feature in google maps?
Click to expand...
Click to collapse
Bump..................

Free CoPilot with T Mobile Pulse - is it worth the download?

As anyone who has taken T-Mobile up on there recent offer knows, you get a free copy of CoPilot Live with selected phones, which includes the Pulse.
With it being the "Live" version, I'm wondering if this is any better or worse than the free Google navigation that comes with Android 2.1. The later does turn by turn, voice, and (as far as I'm aware) the unique ability to be able to overlay satellite imagery over top of the map.
I've no idea what CoPilot offers (I know there's the website, but I doubt they'll be giving away the latest version)
So is CoPilot worth the download? Or should I not bother and just keep the phone holder?
After all, it seems like a lot of hassle (prepare an SD card, download the app, request a license key, blah blah)

speckles said:
As anyone who has taken T-Mobile up on there recent offer knows, you get a free copy of CoPilot Live with selected phones, which includes the Pulse.
With it being the "Live" version, I'm wondering if this is any better or worse than the free Google navigation that comes with Android 2.1. The later does turn by turn, voice, and (as far as I'm aware) the unique ability to be able to overlay satellite imagery over top of the map.
I've no idea what CoPilot offers (I know there's the website, but I doubt they'll be giving away the latest version)
So is CoPilot worth the download? Or should I not bother and just keep the phone holder?
After all, it seems like a lot of hassle (prepare an SD card, download the app, request a license key, blah blah)
Click to expand...
Click to collapse
i definitely would take it. i used for a long time (although not sooo legally ) the big advantage was live traffic to avoid traffic jams and OFFLINE MAPS which was very useful for me becuase i dont have a data plan.
i have prepaid of a discounter ^^
furthermore i think the interface is way better and it is only developed for navigation.
google navigation seems at least for me to be an addon for google maps which works quite well nut copilot works in another league.
i hope i could help in any way.
could be that my point of view is very limited as i just cant use google maps that much without an unlimited dataplan. (24cent/mbyte is way too much to use it for navigation)
cheers

Even if you have a good dataplan, CoPilot would be worth getting because it will work where the 3G coverage is poor or non-existent.

Good points, I'll try it when it comes and check. Offline maps for non-3G areas would be an excellent feature.

I'm using it on my Milestone and I think it's pretty good (even though I have 'unlimited' data anyway).
-------------------------------------
Sent from my Milestone via the XDA Tapatalk App

i think copilot live does not use data to calculate routes
only if you use the live traffic updates etc then it uses data?
thats what im understanding?

New Google Maps w/ offline maps - pretty underwhelming

Unless I am missing something, the offline maps feature kinda sucks. While yes, you have the pure basic map available to you, that's about it. Things that still require a data connection:
1. Getting directions - i.e. directions from 49th and 7th to Madison Square Garden
2. Navigation - i.e. the GPS navigator app ("turn right," "rerouting," etc.)
3. Non-major landmarks - the NYC map looks downright empty, as we only get street names and major landmarks... I was hoping that we could still see names of buildings/restaurants/shops, maybe even the 3D building outlines
I get that option 3 will require a lot more storage, but seems worth it (or at least provide an option to save that down).
But the lack of offline directions/navigation really limits the utility of offline maps, imo. I understand if directions may require access to the Google servers to generate a path - but clearly standalone GPS units can all do this without cell/WiFi signal. Seems like there should be a way to do this.

Complaining about new features... Amazing.
Here's an idea, instead of complaining about not having certain landmarks while offline in new york, turn your cell phone connection on and have those features...
Sent from my HTC One X using Tapatalk 2

bloodrain954 said:
Complaining about new features... Amazing.
Click to expand...
Click to collapse
I agree with OP. I don't see any major difference with this offline cache against the samething offered previously. So, it is not a new feature to me.
Here's an idea, instead of complaining about not having certain landmarks while offline in new york, turn your cell phone connection on and have those features...
Click to expand...
Click to collapse
Here is a clue to you: you landed in a foreign country and you know it will cost you an arm or a leg to turn on the cell phone data connection. Or, in the case of CMDA phones, you may not have connections at all. This is why we need to have offline caching.

I think his gripes are valid. What is the point of an offline map if you can't navigate or get directions? Typically people download maps offline when they know they are going to be traveling through/in an area without a strong data connection.
I had no idea those features didn't work in offline mode and just because the missing features don't impact you doesn't mean others don't have valid reasons for wanting/needing them.

bloodrain954 said:
Complaining about new features... Amazing.
Here's an idea, instead of complaining about not having certain landmarks while offline in new york, turn your cell phone connection on and have those features...
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
You are right. If it's a new feature, it must be flawless, and I must bow down in reverence. I am oh so sorry to offend you.
The point of this thread is to make others aware, see if they agree, if there are other solutions... you know, form a "discussion."
Thanks foxbat and ComposMentis!

neocryte said:
You are right. If it's a new feature, it must be flawless, and I must bow down in reverence. I am oh so sorry to offend you.
The point of this thread is to make others aware, see if they agree, if there are other solutions... you know, form a "discussion."
Thanks foxbat and ComposMentis!
Click to expand...
Click to collapse
Disagreeing and debating is a form of "discussion". What's the point of talking about anything if everyone agrees with you?

Agree with you, no major changes. Offline navi and directions a must!

Super disappointing. I'm not sure why google falls down so badly sometimes.

Well, when I read the google map change, it simply say that map can be downloaded for offline caching. Nowhere does it says it allow for offline search, direction and such.
Yes, does feature have been long time requested and google announce it was coming soon, but one feature like this, as easy as it might seems, can be very hard to implement on a system that wasn't made for it. Having the map offline (for reel now, not those 10 parts max download) is a step in the right direction. Remember when they decided that the map would "fade out" when you are on a long stretch that doesn't have any new information to sa battery? Lots of people requested it's removal or at least an option to toggle it. The feature was made available in a menu like 10 updates later. It's not 1 dev team that's doing everything from google map, google navigation to google itself, where it is the central of all maps query and database.

Unless you can download much, much larger areas at a time, navigation offline will never work. It has to pick directions based on the entire map and all possible routes. Navigation as it stands, im fairly certain, sends requests to google's servers for them to calculate and give back results. Eventually this may be ported to the OS itself as voice diction is now in JB, but as it stands, it requires an internet connection.

new maps suck! before, you could enable precaching in labs and get up to 10 areas downloaded, but now it only works in USA and UK!
and I live in Narnia again -.-

I am not even able to get a large area 2 hours away about 100 miles, would be nice if you could choose the size it could use., or something like this map will be approximately blah blah mb. Do you agree... And offline directions would be really the only reason to use offline, can't think of much more to use it for. I live in an area that has fauxG (hspa+) but 15 min in all directions I'm stuck to edge for the whole area until greenbay, or lower michigan. So having a large area available offline would be nice. Good idea, but bad implementation.
Sent from my HTC One X using xda premium

Seeing as they are slowly upgrading a free service, I think the update is just fine...
Sent from my HTC One S using xda premium

Used to be able to cache all over the world. Now it's just N. America and UK I guess. Sucks for me

raikesy said:
Seeing as they are slowly upgrading a free service, I think the update is just fine...
Sent from my HTC One S using xda premium
Click to expand...
Click to collapse
+1
Google Maps gives us Navigation, Places, Traffic, Transit, etc., all for free and they all work pretty well. I'm sure Google is going to enhance the feature soon enough.
I feel they wanted to shed the "Beta" tag ahead of Apple releasing their mapping application but it was probably still too soon.

Used offline mode in SanFran this last week, has just the info it needs, worked great.

which app would provide these features since google doesn't? Nav has become very important to me recently.

Gave it a test on the way to the cities this weekend... Its functional and doesn't appear to need 2-3gb of data like the TomTom app needs...
Sent from my HTC One X using xda app-developers app

ThisWasATriumph said:
Unless you can download much, much larger areas at a time, navigation offline will never work. It has to pick directions based on the entire map and all possible routes. Navigation as it stands, im fairly certain, sends requests to google's servers for them to calculate and give back results. Eventually this may be ported to the OS itself as voice diction is now in JB, but as it stands, it requires an internet connection.
Click to expand...
Click to collapse
I'm just wondering how Nokia Maps on Windows Phone OS can do true offline turn-by-turn navigation, and Google Maps cannot. Nokia Maps has had this feature for about 2 or 3 years at least.

trace1er said:
I'm just wondering how Nokia Maps on Windows Phone OS can do true offline turn-by-turn navigation, and Google Maps cannot. Nokia Maps has had this feature for about 2 or 3 years at least.
Click to expand...
Click to collapse
It all comes up to $$$. Map data is expensive to license. There are only two map data providers in the world: Tele Atlas (now owned by TomTom) and NavTeq (now owned by Nokia). License terms dictate what Google can do and can't do. For example, Microsoft's Bing Maps on WP7 can't even do what Google Nav can do today.
Nokia Maps are only allowed to work on Nokia phones.