I’m currently typing this from my KDE 3.1 desktop on a sunblade at school. I’ve got to say, it’s a very nice setup to have. The antialiased fonts really help out a lot. The desktop also seems fairly zippy (well, relative for a 500MHz machine of course). I’m not sure how much of this actually has to deal with me running Gentoo or not. Of course, I’d like to think that Gentoo is entirely responsible, as it makes me want to install it more on my computer, but I realize it’s probably a combination of a lot of things.
Anyway, go “emerge kde” now.