Originally Posted by
sarah morin
for some countries , the use of gps depends on the 3g quality !
using a Gps : Directly connected to Satellite , noo bugs i think , instant replies ...
This isn't quite right.
The phones work fine as "standalone" GPS (you don't need cell service at all).
The phones can use cell-towers (and wifi) to determine approximate location very quickly. GPS is faster and more accurate but can take longer to start without a good approximate location.
If you are using your phone as a GPS, you probably want to use maps that are stored on the device. Things like Google Maps download maps as-needed, which requires cell-service.