Follow the instructions at the link below to install KDE 4 for Ubuntu:
http://kubuntu.org/announcements/kde-4.0.php
Screenshots follow! 🙂
KDE 4’s Show Desktop Grid, use Ctrl-F8:
Pick running app, use Ctrl-F10
If you want some more screenshots let me know.
Update: To install extra goodies do the following:
sudo aptitude install kde4
E17 Darkness Theme on Ubuntu:
E17 Darkness Theme on Ubuntu with the menu highlighted:
E17 Darkness theme with a wallpaper from vladstudio.com:
Themes are available from get-e.org. The packages for Ubuntu come with Darkness and other themes, the Debian package appears to only come with the default theme.
Look for my latest posting on E17 as this information could be out-of-date: