Good Gear Guide
In Pictures: 10 amazing Linux desktop environments...
ROX is...weird, but wonderful. It brings together the “everything is a file” style of traditional UNIX systems with some concepts from RISC OS. Most current computers try to hide the guts of your file system from you and provide you with a series of launchers (docks, “start buttons”, etc.) and shortcut tools. ROX takes the opposite approach, opting instead to make the file system itself as usable as possible so you can work with your system efficiently directly from the file manager. To this end, ROX uses the “Applications are directories” approach, filing applications (and support files) in a single directory that is then treated as the app itself.
In Pictures: 10 amazing Linux desktop environments you've probably never seen