iOS devices secretly log and retain record of every place you go, transfer to your PC and subsequent devices

Security researchers presenting at the Where 2.0 conference have revealed a hidden, secret iOS file that keeps a record of everywhere you've been. The record is synched to your PC and subsequently resynched to your other mobile devices. The file is not transmitted to Apple, but constitutes a substantial privacy breach if your PC or mobile device are lost or seized.
iOS devices secretly log and retain record of every place you go, transfer to your PC and subsequent devices