I picked up a Touchpad in the sale and I agree that the WebOS interface is lovely. Easiest the nicest of any tablet OS I've tried (Android 3.2 & IOS). But it's just too damn laggy even when overclocked and hacked to bits. What some of the early (disclaimers apply) Andoird-on-Touchpad benchmarks are showing is that the hardware is actually pretty good, significantly faster than the Tegra 2 tablets. If you put WebOS on the hardware you suggested it would run even slower. The physical build quality of the Touchpad is poor, I grant you. Big, heavy and plastic. Worst of all worlds.

I value very quiet computers so I use a 533Mhz EPIA (passively cooled) as my main workstation.

The case is a Chyang Fun cube, with the power supply replaced with a 60W DC->DC one. Instead of a hard drive I use a compact flash to boot an OpenBSD diskless kernel and then onwards everything is over the network to my disk server in the other room. Since the compact flash is only read for the kernel and never written to it shoulnd't die too quickly.

Result? No moving parts and therefore dead silent. It's very nice. All works fine under OpenBSD although I'm using a Matrox G200 for the graphics rather than what's on-board so I can't comment on that.

In the UK you can get this stuff from Ultim8PC and LinITX.