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I love new toys.

I'm not too sure anout the iPhone, but a data connection is needed to download maps and POIs while using GPS on most smart phones. I've never had a gps "signal" where I hadn't cell coverage, so I cannot confirm it. Just what I read :shrug:.

TomTom for iphone you DL all the maps and they are stored on the phone. The app is over 1G. So you just need to be in view of a the sky/satellite and your golden even with zero reception.
 
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