I guess many linux gurus may be very familiar with this site. I didn't know its existence until today! Maybe it doesn't really fit here. But the lines between subnotebooks, ultraportables (or the UMPCs for that matter) and handhelds are becoming blurred, not just in terms of size but also the hardware and functionalities and even compatibility with different (full-blown) OSs. It is fun to see how all these different machines running Linux:
Does the Zaurus count here?