Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Apr 20, 2011
Don't miss an upload! Subscribe! http://goo.gl/szEauh 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.