Use your PDA to acquire your GPS position and send it through an SMS. The GPS position is update every 5 seconds (in order to conserve energy). SMSs can be sent automatically at regular time intervals. Read more about Astrolabe v1.1.2 (PPC Application)
WiiEarth allows you to use your Wiimote to navigate (and zoom-in on) the Earth, using Google Maps and similar services. You can switch between viewing with OpenStreetMap, Live (Maps, Satellite) and Google (Maps, Satellite, Terrain). Read more about WiiEarth v2.2 (Wii Application)