I keep my GPS turned off to conserve battery power. I assumed that in order to use the maps feature on this phone, the GPS would have to be turned on. Found out it didn't have to be. Still am able to obtain "my location" (even though it actually has me located a few blocks away from where I am actually at) Still am able to obtain directions to places etc etc etc. I am assuming my location is found through the phone network? Ok so here comes to NoOb question. What features/programs actually require the GPS have to be turned on in order to work? Thanks!