I can't believe that I have owned this many PDAs. Even worse, that I still have all of them. Each one was a step up in functionality, from mono screen to full color, quiet beeps to stereo sound, still pictures to full-motion video, unconnected to high speed wifi. They have accompanied me during my daily activities, as well as on my travels around the world, storing useful information, saving important trip notes, and providing news and entertainment during monotonous train and plane rides. I guess that's why I can't get rid of any of them: they've all been indispensable friends.