Well... I love my Aspire One. With a 160 GB hard-disk, 1.5 gigs of RAM and Ubuntu 8.10 it's a remarkably capable workstation that can hide in my bag in a way nobody would guess I am carrying a computer. I have to explain that: I live in Brazil and there is a larger risk of being robbed than I would comfortably live with. Having a nearly "invisible" computer is priceless.
It is not and will never be blindingly fast, but it's good enough for me.