KDE 3.1 Beta

http://www.kde.org/

“KDE is a powerful graphical desktop environment for Unix workstations. It
combines ease of use, contemporary functionality and outstanding graphical
design with the technological superiority of the Unix operating system. KDE is a

completely new desktop, incorporating a large suite of applications for Unix
workstations. While KDE includes a window manager, file manager, panel, control
center and many other components that one would expect to be part of a
contemporary desktop environment, the true strength of this exceptional
environment lies in the interoperability of its components.”