Vroomtrap is a web application designed to identify speed traps across the world for motorists using public roads. The iPhone application is an extension of the web application which allows users to upload information about where speed traps are located. The iPhone application also downloads speed traps from the website every mile and scans for any speed traps in your area in real time. If a speed trap is located near you, the application alerts you.

http://appshopper.com/travel/vroomtrap