So my girlfriend got me an iPhone as a present. I was pretty skeptical. Until, that is, I started coming across some of the really cool car related apps you can install. One app uses the internal accellerometer to measure camber angles and track car setup. The other uses the motion sensors to act as a virtual dynamometer, showing accelleration & max lateral force. Apple is obviously gonna make a pretty penny off of me when I buy all these apps.
In an effort to not buy every single damn application out there, does anyone have any favorites, or, on the other hand, apps that have proven to be complete E36M3?

