(We'll see if this gets any votes for dumb question of the week.) I don't have a data plan, nor do I want one. I knew the GPS was problematic on the Galaxy S when I bought it, but I didn't really foresee much GPS use. I'm curious to play with it, but don't know how much I'll actually need it. Am I right in assuming that the basic GPS is separate from 3G in that I can use it to find my location? I understand that overlaying my location on Google Maps needs 3G (unless I'm using WiFi). However, is it also possible to overlay my location on off-line, cached maps like those in MapDroyd and Maps (-)? Also, what privileges/settings do I need for the GPS to communicate with these maps and show my location?