While most of the ink devoted to new PDAs goes to Palm and Pocket PC models and the ongoing convergence with cell phones, there is a PDA model out there that's designed specifically for computer geeks. It's the Zaurus, from Japanese electronics giant Sharp. The Zaurus is the only Linux-Java-based PDA. This means it runs on open-source software and can be hacked and adjusted to do just about anything. It also comes with Wi-Fi for connecting to Internet hot spots. And it takes both SD cards and Compact Flash I and II cards.
So why isn't it better known? It's not super user-friendly and is really designed from the ground up as a PDA for computer geeks who want to spend lots of time programming it, rather than using simple, pre-determined programs.