[shaggylive]

aGPS= cell tower provides rough data to the phone, then the phone processes, and x-mits to server, server talks to application,, ie.. sprint navigator...

but if you'll notice step one is more of a broadcast, and that's all that these chipsets need to help lock the real gps.

I paraphrased alot, but it was a winter's worth of research, while the chefs were busy with the roms...