[tlcasper]

I won't pretend to know all technical aspects or the what the exact functions of the chips are.

The screen shots don't prove anything of the kind, they are just shots of me using the phone to navigate, with the phone in airplane mode. I would assume this means no data. I got a lock on my location, then had the phone navigate to a preloaded destination. Everything worked as it would in normal mode, turn by turn directions, and accurate mapping the whole 5 km trip.

I'm not really interested in making a point, or changing anyone's mind. Or even what the technical specs may be. I am just passing on my experience with the Touch's GPS.