Woman using cellphone
Getty Images
Security

Feds appeal blockage of warrantless phone tracking

Apple restrictions
Apple
iPhone

Apple patent would disable phone based on location

People using cellphones
Reuters / file
privacy

Location privacy bill passed by California Assembly

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Foursquare
Foursquare
location-based-social-network

Location services are smartphone gold, but not many people 'check in'

Reuters
Larry Page

Android location data 'extremely valuable to Google'