Those crafty iPhone developers have done it again. NMobile and Trapster are applets geared to those who prefer to lay low on the cop radar. Providing users with up-to-date, detailed speed enforcement maps, NMobile and Trapster flag the locations of live police traps, speed cameras, and/or red-light cameras. Users are notified of impending traps with audio alerts as they approach a speed trap zone. The developers rely on users to flag the locations and pinpoint them.  [ NYT ]