About two weeks ago, two researchers poking around inside iOS came across a file entitled “consolidated.db” that seemed to be generated each time an iPhone was synced with the host computer. That file, once opened, showed a time-stamped record of the phone’s location (via cell tower triangulation) that spanned back several years. The two researchers, Pete Warden and Alasdair Allan, found a similar file on each machine of theirs that had been synced with an iPhone. If you have an iPhone, there’s a similar file on your machine right now.