AppAnalytics is a new jailbreak tweak available in Cydia for the iPad, this tweak will show you which apps you use the most. AppAnalytics will show you every app that has been accessed, how many times it has been opened, and the total amount of time spent using the app. If you are curious to find out how much time you have wasted playing Angry Birds or surfing twitter...this is the jailbreak tweak for you.
Check out the quick walkthrough from Jeff at iDB:
AppAnalytics is available in Cydia from the BigBoss repo for $0.99.