If you didn't already think your smartphone knows too much about you, here's a handy reminder. A duo of UK researchers have uncovered a potentially worrying (and oddly enough, undocumented) feature in iOS 4: it asks your iPhone to record your location constantly, then timestamps that data and records it for posterity. The trouble with this unsolicited location tracking is that the hidden file that holds the data -- consolidated.db -- is relatively easy to uncover and read, making any desktops you've backed your phone up to and the phone itself even bigger privacy dangers than they would usually be. Some extra digging revealed this behavior has been known about for a g