Give it up Jethro ... you are wrong on this one. It is well-known that you can receive a GPS lock without any cellphone towers involved. Sure, A-GPS may kick in for certain apps, such as Google Maps, but an A-GPS signal is useless for an app like TomTom or Garmin because it is not precise enough.
Also, the whole point of your thread makes little sense. How many users do *not* have a data plan anyway? It's going to be an insignificant number.
-GT
Oh boy. As I said before, A lock can be established because the satellite can locate you. Now the transmission of data will come from an A-GPS server because your phone will have hard time computing for data and it will drain ur battery. Pls. read the previous post before posting. Thanks