Cycling jacket that detects motion

[GuitarRiderGrrl]

I'm going to start working on it
Its one of those "Duh!" things....... and its so simple!
I think that as far as a taillight goes, I should be able to put the accelerometer and the meager amount of electronics to support it, inside a standard blinkie housing - Could use bicolor LED's too, that would go from yellow, for normal riding (as long as you have a back red reflector, you meet the law for a rear red light - so what would happen is when you are either accelerating or coasting, your blinkie would be amber, and when you decelerate, it changes color to red... easy peasy.
whatcha think?
Cyn

Wow, that rocks! DH and I would totally buy one. I wonder if we should alert some of the companies that make cycling apparel that there is a market for this??