Trapster(R), your iPhone alerts you as you approach police speed traps, red light cameras, and other kinds of traps.
It's a high tech way to do the same thing people have been doing for years with CB radios and flashing headlights at other drivers to warn them of a speed trap ahead. It works using the GPS and WiFi location capabilities of your iPhone 3G.
Full Specifications
What's new in version 1.0.2
Fixed: In certain lacales traps were being placad at the wrong location.
Added an option to display distances in kilometers.
Added an option to limit audible trap notification to a single occurance.