Basically an e-ink bumper sticker, with a camera equipped which would take a pic and read your license plate. And give a personalized message, when a car behind you approaches too close. "Hey idiot with plate # BED-234, back off"
-- romanmar, Dec 09 2005

It might need some more AI than that, most people are unaware of their license number.

"Hey, red nissan with the dented right fender, back off!"
-- normzone, Dec 09 2005


with even better AI! We can add other checks too, provide more messages,e.g. "And fix those teeth too!"
-- romanmar, Dec 09 2005



random, halfbakery