I'm hoping someone can help me with a definitive answer (please no "I think"s or "I believe"s ). Is a data connection (ie. 2G, 3G etc) necessary for GPS to work? If I have my data turned off (APNdroid) or I cancel my data plan and keep voice only, does GPS still work? If I call 911, will GPS still send them my coordinates, even with no Data connection? Thanks!