Here's a great ZDNet review of the Sharp Zaurus SL-5500. "On the surface, Sharp appears to have made all the right moves with its new Zaurus SL-5500. Not only has the company combined an outstanding, cutting-edge hardware design with top-flight components and the Linux operating system, but Sharp has gotten software developers excited about the device, and there are already quite a few polished applications available for this handheld. We were pretty excited, too, until we discovered a few kinks that keep the SL-5500 from becoming the strong competitor to Pocket PC devices that it almost is."