Here are a few GooTube videos of the upcoming KDE 4 release (these are from beta 3)
“This is a video from Gwenview from KDE 4 beta 3. I show off some features… Looks rather cool, imho.”
“a view of plasma and kickoff from live cd of kde4 beta 3″
a little preview of Kalzium for KDE 4.0 beta 3