Kind of a Leap Frog learning system for GPS, the Geomate Jr. is an out of the box Geocaching GPS system. Geo caching doesn't get enough press for being a great way to get kids outside under the guise of playing a video game. Good reviews from PC Magazine and CNET. Given how hard some of the "adult" GPS units are to use, the Geomate might be good for the adult market as well. Retails for $69.95.