Lamonster
SpyderLovers Founder
I just had to give this a try.
http://dynolicious.com
Dynolicious is the first automotive performance meter available for the iPhone and iPod Touch. Dynolicious uses the hardware built-in to your iPhone to measure the performance characteristics of your vehicle. No external wires or equipment is necessary, simply slip the iPhone into a cradle or cupholder and go!
Some of the performance metrics Dynolicious can measure:

http://dynolicious.com
Dynolicious is the first automotive performance meter available for the iPhone and iPod Touch. Dynolicious uses the hardware built-in to your iPhone to measure the performance characteristics of your vehicle. No external wires or equipment is necessary, simply slip the iPhone into a cradle or cupholder and go!
Some of the performance metrics Dynolicious can measure:
- 0-60 Acceleration
- 1/4 Mile Elapsed Time
- Lateral G's
- Horsepower
- Friction Circle
- Downloadable Timed Run Graphs
- Downloadable Skidpad Graphs