People concerned with cell phone privacy and tracking should check out: http://www.wired.com/threatlevel/2011/09/cellular-customer-data/ http://www.wired.com/t

People concerned with cell phone privacy and tracking should check out: http://www.wired.com/threatlevel/2011/09/cellular-customer-data/ http://www.wired.com/threatlevel/2011/09/cellular-customer-d... AT&T seems like the worst offender with regards to storing tracking information: The biggest difference in retention surrounds so-called cell-site data. That is information detailing a phone’s movement history via its connections to mobile phone towers while its traveling. Verizon keeps that data on a one-year rolling basis; T-Mobile for “a year or more;” Sprint up to two years, and AT&T indefinitely, from July 2008.