Our favorite speed trap-tracking app has just given itself a complete overhaul. Trapster 5.0 is complete, with a new interface, 3D tracking and day/night modes. It should all make it easier to stay one step ahead of your next ticket.
The reason why we like Trapster so much (other than that it's free) is that all its information is user-submitted. You know exactly where the next speed trap is because the driver in front of you tagged it.