So I've got it on my ipod here at the office and was able to get up to 82 mph walking down the hall.
![laughingdp](http://ducatimonsterforum.org/Smileys/classic/laughdmf.gif)
And tilting the ipod back and forth registers it as accelerating/braking, so I don't think it would work well on a bike doing wheelies and stoppies, or leaning.
Of course it wasn't able to make it through the calibration process so maybe that's why my numbers are off.
![Roll Eyes](http://ducatimonsterforum.org/Smileys/classic/rolleyes.gif)