Schizophrenia Ltd's Gtk Desktop System is a desktop environment based on GNOME with a few huge differences.
The Panel has no pull-up menus. Instead, panel buttons pull up a frame in the center of the screen that is more user-friendly than the menu. The taskbar is non-existent, replaced by a cooler 'iconified' menu invoked by F10.
There is a customizable desktop switching animation, and the window placement sequence is comparable to Windows Vista (but much improved).
The 3D file manager is based on 3dfb, but with some changes (we're going to add previews to the file icons, and create 3d icons for the files without previews).
Desktop switching will be like SuSE's rotating cube, but customizable. The Window Placement animation will be like what Microsoft Corporation is advertising for Windows Vista, except the windows will 'pop' out of the icon that 'spawns' it or whatever creates it with a cool effect.
These details are provided for information only. No information here is legal advice and should not be used as such.