Make your own commercial gps unit powered by Pi, suitable for advanced ICBM telemetry! http://www.holmea.demon.co.uk/GPS/Main.htm
do whatev I think mine is going to become this: http://www.instructables.com/id/Raspberry-Pi-Wall-Mounted-Google-Calendar/?ALLSTEPS (with a prettier monitor). And I'll probably buy a second to monitor keg levels when I get my kegerator built.