The Nokia N800 looks really cool, but I wonder if it’s size is a little to large to make it practical to carry around. The lack of good Flash support, and weak MPEG4 (my guess would be lack of an onboard decoder and using software to make up for it). The fact that it’s Linux powered means you can run a fair amount of desktop software on it, with a little patience.
The size is really what hurts. If it were a little smaller, it would be a really cool PDA-like device.
I’m still curious what people will figure out can be done with the hardware. It’s still too new to tell. From what I’ve read it’s somewhat powerful, so the potential is there.