Iphones keep a database of the latitude, longitude and timestamp of users when they move from one location to another, I'm assuming for marketing purposes. So your iphone knows everywhere you've been and when you were there for as long as you've had the phone. I know we are living in an increasingly privacy-free world and I'd better get used to it, but to me this is just plain creepy.
These guys who discovered this secret database have invented a free downloadable application where you can plug the contents of that database into the program and it will map out the points for you. So you can see a visual map of everywhere you've been. Kind of cool, but I still think it's creepy.
Pete Warden and Alasdair Allan talking about how they discovered the existence of the tracking database on the iPhone, and what it might mean. Also how they went about exploring and visualising the data once they knew it was there, and show how it could be used to track individuals movements over time.Here is a video of the application at work.
Washington DC to New York from Alasdair Allan on Vimeo.