This would have been a great app to document changes I make to the suspension of my little racer, but without the ability to log, its only a toy that might impress passengers, but wont because TrackAddict is more useful, and even more impressive. TA doesnt log G-forces though, making it sad that the developers have seemingly lost interest in taking Zilla any further. No updates in well over a year. 2 stars for the great concept, but breaking the promise of logging capability.