Trapster® is a cool program that uses your phone's GPS and Internet to alert you as you approach reported traps/Red light camera at real time. It works with iPhone/Blackberry/Windows Mobile 5/Windows Mobile 6/Java-J2ME, etc phones.
Download: http://www.trapster.com/index.php
For WM5/WM6 phone: http://forum.ppcgeeks.com/showthread.php?t=23191
When you see a trap, report it by pressing a button on your phone, or calling a toll free number. Other user's phones will alert them as they approach the trap. Trapster® learns the credibility of traps based on how many users agree. It also learns the credibility of each user, over time.
Click the link to watch a demo video of Trapster®: http://www.trapster.com/presentation.phpPolice are not stupid. They change the locations where they set up speed traps many times per day. Only real time data is useful. Trapster® data is real time data.
You can check the map here that show the location for "live police", "red light camera", "speed camera", and "usual police hiding place": http://www.trapster.com/rl/Trapster.php
Speed trap location data is only useful if you can actually use it. You can't just look on a map and memorize all the trap locations. Trapster® continuously communicates with your mobile phone or connected device (for example the Dash Express or CarPC). Data is never stale. And it's FREE.
