this is exactly the sort of tuning aid I have been talking about for some time, and I know of at least one other company working on supporting the contour pcm (
www.tweecer.com )
This sort of tuner will allow complete control over the tune/calibration of the powertrain. This is both good and bad, it allows you to tune exactly to your personal setup, and run things the way you want. The downside is, how many out there really know what they are doing in tuning an engine? Not many (not even those of you that are trying to lie to yourself right now).
As to those wondering about warranty issues . . . If you are concerned about your warranty, DO NOT install something like this (or the Apexi, etc.) since it is very easy to cause damage to your engine w/ the wrong settings, and a dealer will NOT warranty any damage caused by your tuning or aftermarket parts. These aftermarket items will typically leave some sort of tell-tale marks somewhere so a dealer can tell it was there. Also, if you do happen to try and are succesful in getting a dealer to repair damage caused by your inept tuning, you will be guilty of criminal fraud, and for your sake, I hope you don't get caught.
