On the 11.0 page it states.
OpenSUSE 11.0 - openSUSE
The next version of openSUSE is coming Thursday, June 19th, 2008! Some of the new features and cool innovations in openSUSE 11.0 include updated desktops with new features, including the revolutionary new KDE 4
But for the picture of the demo desktop.They use Gnome.
Image:OS11.0beta1-gnome0.png - openSUSE
I just got a laugh out of that.