The C905 we talked about a while ago has finally made it to FCC indicating that it is ready to hit the stores in the U.S. pretty soon.
To remind you it has an A-GPS receiver which the manual also talks about:
with assisted start your location is calculated more quickly. If not turned off, Assisted start will automatically be used to find your location when Asisted GPS (A-GPS) technology is available
It also mentions Google Maps for mobile and how it uses GPS data:
When you start Google Maps, your approximate location is shown using information from nearby mobile towers. Your location is updated with a more precise position when the GPS receiver finds your location.
Sony Ericsson C905 has the Wayfinder Navigator for live driving directions. It is offered for free for the first three months.