Yo!

KDE on the N800 and N770... Pengunbait is a genius

Ok, well, the post is on the forums, but it isn't too friendly for new users and only include a few lines of instructions... so... I did a write up with a full set of directions and the screenshots from KDE on the n770 and n800! Check it out

http://geekpenguin.blogspot.com/2007/09/kde-on-it.html