The popular X11 desktop environment XFCE, which originally created to offer a free CDE-like DE for Unix/Linux, is closer on releasing the next big version, 4.0. XFce 4 has a radically different architecture from XFce 3. It embodies the traditional UNIX philosophy of modularity and re-usability. All of XFce 4’s core components have been written from scratch in order to fit into the new architecture. Another priority of XFce 4 is adhereance to standards, specifically those defined at freedesktop.org (new screenshots, the first one in that list is the newest and most relevant one, showing the components of the DE). You can visit the CVS, or you can download a daily CVS snapshot and compile it. XFce 4 is under active development and should be considered alpha quality.