Originally Posted by k9Berry1
APGS is based on Cell sites not actual GPS sats. so if your like me and in an area with only one tower your not going to get very accuracte results. You really need 3 or more towers for an accurate location.
currenlty the IDEN systems are the only ones (i know of) that have true GPS for user applications.
That's true, although the highly touted Nextel navigation system (Telenav) is not
one of those apps. It uses cell tower triangulation, so if you are in a no service area, it will not function. The true GPS apps are used for work tracking (applications such as Xora Timetrack and @Road)).
Personally, I use google maps on my 7520 and find that it just isn't worth paying $10 a month for Telenav, when really the only difference is hitting a key to update the directions once you've made a turn, versus Telenav doing it for you.