This is an SC-200 GPS Mouse, advertised as a Speed Camera Advisor for your car. Currently available from Maplins (UK) for £14.99. I have found out where on the PCB the serial data could be read from the GPS module. Using pins 0 and 1 (Serial RX/TX) on the Arduino and reading data in at 38400 baud you can see the NMEA data coming directly off the GPS module.
This GPS unit is going to be used in a high altitude balloon attempt to send an balloon with a digital camera to the edge of space. The GPS data will be read by an Arduino and transmitted down a low power RF link to enable tracking and recovery of the payload.
Next stage is to solder some wires to it, then send the serial data over an 433MHz RF link.