Did you know smart phones are Geo tagging pictures as the default setting ?
So if a girl posts a sexy picture of herself, her GPS location is available in the pictures properties. Advantage to thieves, stalkers and sex offenders. Call me old fashioned but I don't think this is a good idea.
Most people aren't that tech savvy and can easily get lost in the settings menus, so setting defaults to change Geo tracking isn't the answer IMO.
http://abclocal.go.com/wabc/video?id=7621105