iPAQ 3800 In Photos
okiwan points to this review of the H3800, the newest rev of the handheld iPAQs, writing "New pics of the ipaq 38xx. hella neat." The photos also give a good size comparison to other handhelds, including ones you may not have heard of before.
In Germany GNU/Linux-iPAQs (i. e. H36xx for now) can be bought preinstalled with GNU/Linux and QPE from some third-party vendors, e. g. LISA Systems ("http://www.lisa.de/" - please don't /. them too badly, it's a small company ;-)). As Compaq contributes a lot of research and development into bringing the penguin to their PDAs, it's really time for them to sell them preinstalled. I'm quite sure it won't take long until the H38xx will have full GNU/Linux support like the H36xx series.
I bought my H3660 from such a third-party vendor, and the default GNU/Linux + QPE installation is really usable.