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Where does the info for the landmark recognition feature come from? Is it from street view?

I dont see how the landmark recognition feature could be useful. If you have a camera + 3g on your phone, you have a GPS.

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The latest iPod Touch has a video camera but no GPS. The same is true of various other non-phone handheld tablets. (Though landmark recognition might not be useful on those, since apparently it actually uses the GPS and compass as input...)

3g adds nothing to this. Any network of sufficient bandwidth would work.

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