GPSAuto 1.0

the author of this app says:

GPSAuto is a PocketPC application for monitoring your current speed and alerting when crossing speed limits. You can use GPSAuto in your automobile (car) for accurate measuring (based on GPS system) of actual speed and getting warning when crossing speed limit (speed limits as well as many other parameters are fully configurable). Unlike it's competitors, GPSAuto offers also automated switching of speed limits based on your actual speed.