Just another TuxScreen owner ;). I acquired my IS2630 in May 2000 (great to see so many people are interested in getting Linux to run on it!) and have also been working with a Linux-equipped iPaq for about a year now. I've been hacking the Linux kernel for some years, mainly on MIPS (DECstation) and PowerPC; I did a bit of work on the Linux port to DEC 3000 TurboChannel Alphas, too.
Oh yeah, in my "other life" I'm just finishing my diploma thesis in CS and will be working towards a Ph.D. degree in the area of pervasive computing (which, of course, will include a lot of Linux hacking ;))
Btw, are there any more TuxScreen owners in Germany?