SPEED TRAP WARNINGS FOR MOTORISTS VIA YOUR CELL PHONE AND GPS

This story appeared on slashdot, i love such cleaver applications to solve simple headaches. The concept is so clear it has the "dough" effect, yet implementation is technical enough to make it challanging. judge for yourself, check out the slashdot post below.

http://www.trapster.com/rl/Trapster.php

http://mobile.slashdot.org/article.pl?sid=08/04/03/1632215

"In a modern equivalent of flashing your headlights to warn other motorists of police speed traps, you can now [0]warn fellow drivers with a cell phone or personal digital assistant about speed traps, red-light cameras, and other threats to ticket-free driving. And as you approach a known threat, you'll get an audio alert on your mobile device.
The developer of Trapster, Pete Tenereillo, said the system, which requires punching in a few keys such as '#1' to submit information to Trapster's database, should comply with laws banning talking on cell phones. The free service can automatically detect location using mobile devices' GPS capabilities or tap their Wi-Fi and get location from a database run by Skyhook Wireless. Police officials that Tenereillo has talked to haven't complained about the service because it inevitably encourages drivers to slow down."