OK, my $.02...
She has had an Aspire One for a few months, and she really likes it, so I took hers for a test drive yesterday. That's it! This is going to be my next computer, even without much comparison shopping. The keyboard is good for me, but I'm accustomed to a compact kbd anyways. The keys are all the right size and in the right places, with the exception of the backspace, which is a little too far to the right. but I can learn to live with it (although, given my typo rate, it's prob'ly the one key I use the most).
My major complaint is with the pointing device, specifically the buttons. They are located directly adjacent to the pad, and the same height, which makes them hard to distinguish from the pad itself, so I end up either looking at it, slowing me down, or feeling around fro the button, which also doesn't work, since it moves the cursor before I find the button. Very annoying, but I can fix that by putting something on the buttons to change the feel and make them easier to find. All in all, I like it a lot.
--T