Im not trying to spam links to you guys, but I ran across this and I just kinda wonder if its possible or not. Detailed information on how to use GPS w/ very little Data. Want your opinions on it. If it was true, then you wouldnt really require a data plan to use your gps
http://tankammo.net/fora/viewtopic.php?f=26&t=424
http://tankammo.net/fora/viewtopic.php?f=26&t=424