Russell Nelson is sitting next to me, writing on a Compaq iPaq handheld computer. It’s running Linux, not Windows CE. See this page at handhelds.org for more information on how it’s done.
Compaq is investing heavily in this platform, though there are no commercial products yet. One of the company’s senior researchers showed me a version yesterday that was stunning in its capabilities. I’ll be getting a full tour later, and will tell you more.