Here are some articles on GPS tech and geocaching I found. http://www.wired.com/news/culture/0,1284,53059,00.html http://www.wired.com/news/technology/0,1282,60379,00.html http://www.wired.com/news/games/0,2101,63011,00.html?tw=wn_story_top5 http://www.wired.com/news/culture/0,1284,62808,00.html ~Chris