This came about when I saw the X-Amiga thread on the forums, and saw screenshots (of the installer, anyway) for that distro one that more or less defaults straight to a pseudo-Amiga environment.
Read the fun here
Thats Gutsy there, with a couple of subtle tricks happening. First of all, thats Openbox controlling the VICE window and terminal screen you see. The root window (the wallpaper, that is) is set to match the VICE bracket around the C64 porthole.