if you haven't already seen it, here's a knock-your-socks-off, professionally executed kwin screencast. a few times i paused and thought, "this is the sort of thing i'd expect for a product like MacOS." but nope, it's KDE4. it was done by a community member in Poland and is backed by some wicked beats (i've been told the song is called "Policeman"), so while slick it also stays true to the KDE way of community and cool. btw, searching youtube for "kwin" yields an impressive number of great videos. Lubos, Rivo and friends have done a great job =)
kde 4.0 got quite a bit of attention in the blogosphere, including from our friends over in gnome which was nice to see =) and yes, i agree with jono that blue hair should be a feature requirement for 4.1 ;) while reading the wired blogs coverage of 4.0 it struck me that the "this is the beginning" message has gotten out well.
liquidat managed pulled up this gem of a quote from a blog entry i wrote 3 years ago: "i’d like kicker to look nicer in general. which is why in KDE4 it will receive a new theme engine." ha! from "let's consider a new theme engine" to "let's rewrite the whole damn thing.." to plasma in 3 easy years ;)
and on the 4.0 release day, i happened to luck out and hit rev #760000 with one of my commits. neat =)