So I've been following, and wanting, one of those little "netbooks" since Asus announced plans for the Eee. Being a wait-and-watch person I held out until there was one that met what I wanted in features and price - the Acer Aspire One (AA1). Being the tinker I am, the first thing I did when I got it was try to update the Linpus OS installed and configure it to have a more normal (aka 'advanced') desktop interface.
A Linux distribution which is free. This topic can also include subject matter on the RedHat Linux distribution.