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 Originally Posted by ronlongo
It's not a satellite GPS it's antenna GPS which means that the phone uses signal strength from cell towers to calculate its position.
Wow, not true at all. It's assisted GPS, that we know for sure. That means that yes, the GPS radio is assisted by the phone's internet connection. There's certain things a GPS receiver needs to do to get a fix, and the major one doesn't change all that often but needs a really good GPS signal (I believe it's called the ephemeris data). That can be downloaded over the Internet easily for a faster fix. But after that, the GPS receiver is getting the signal from the satellites just like any other.
What we don't know is if it'll work in stand-alone mode. In other words, if the phone is off and/or has no signal, we don't know if it'll be able to get that same starting data from the satellite. After the 800w fiasco, and since the Treo Pro (even on Sprint) did work in stand-alone mode, I'd bet the Pre does as well.
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