Comment Debian-eee (Score 1) 466
Debian Lenny (which was released last weekend or so) supports the Eee out of the box. (I'm using it on an Eee1000 now. http://wiki.debian.org/DebianEeePC has links to a custom installer which will install all the right packages for you, but it's juts Debian under the hood.
I get good battery life and everything seems to pretty much Just Work(tm)