Is it necessary to plug in the adapter (dock station) when u run the gps app?
(in other words, is the GPS hardware module built-in in iP ...
1. iphone has inbuild gps module
2. i dont JB, but im sure the app will work on jailbroken phones.
3. according to developer's description on itunes, its only compatible to 3.0 or later versions. mine's 3.0, works flawlessly.