Detta är saxat från ett annat forum som handlar om Motorola A920...
Then i can tell you all that its a REAL GPS reciever !
The A920 has a SiRFstarIIe/LP Chipset and thats a full 12 channel GPS chip.
The small antenna sticking up from the phone is the GPS antenna the stick for external antenna at the back would be quite silly without a real GPS inside.
On the right side of Camera eye inside the phone is there a UMTS/GPRS/GSM antenna.
Well i got this info from an Danish Engeener that have Dissabled the phone and tested it. After that i tried it with http://www.wayfinder.se Software and i worked GREAT ( or almost ).......
Here a another link to software that shows the position of the phone without any radio ( turn your phone to airplane mode) and then use the software and you will see that it will plot your position ( not 100% exactly) but in my case within 15 Met.....
Och här lite mer om AGPS..
In 3' s latest issue of Business Partner (A magazine for their business clients) they have an explanation of differerent words - under AGPS it actually says that it's better than normal GPS, because it works faster when it's using the mobile masts to help know where it is an therefore knows which sattelites to communicate with - it DOESN'T say that it uses only 1 sat (as stated in some forums - which is where I heard it).
Hoppas att det klaranar lite nu!