iPhone Tracker is a Mac app that tracks your past locations that are stored on the iPhone/iPad.
First of all, what the hell. Why are Apple tracking you at all?
Well, this PCWorld article explains it alright, I think.
As for the application: although it’s fun that you can track your own location, the iPhone Tracker has done a huge favor to the marketing people.
Now you don’t even have to code the acquisition of data from the consolidation.db file — iPhone Tracker is open-source!