How does google maps know my current location on my iTouch?

Posted by Tommy on Super User See other posts from Super User or by Tommy
Published on 2010-04-17T08:15:58Z Indexed on 2010/04/17 8:23 UTC
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Filed under:

wifi

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google-apps

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google-maps

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gps

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mac

Using only my home wi-fi, how is google maps able to locate my current position? I know the device doesn't have gps. Also no cellular data to triangulate.

I read about skyhook that has a db of popular wifi hot spots but I doubt my house is listed.

Any information is appreciated. Thanks

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