I notice on my room-mate's netbook, the fan only cools the graphics chip. I like the fanless mini10, though.
What's good about the keyborad? I like my Fujitsu keyboard a lot (Dyesub keycaps, and individual domes FTW) but overall, the IBM thinkpad keyboards are good, too.
Does it have chiclet-style keys? Are they easily moveable (to dvorak)? what aspects of the keyfeel do you prefer?