Hi,
I was messing around with an accelerometer yesterday it doesn't feel too far from mind control.
If you have ever wondered whats better, M-Grip, S-Grip, Sweeps, Spice or Cross and should you be using 32s or 36s, I might have the answer in a day or two.
I am using the accelerometer to measure the cars traction circle.

you can see the first part of this project here -
http://rcarduino.blogspot.com/
If you scroll down you will find more information about this and the traction control project.
Duane.