A Gentoo Linux distrobution called Kororaa released a live cd on March 8, which includes the latest version of Gnome and XGL/Compiz.
If you dont know what XGL is, here you go:
Ok, now, all you crazy windows users know that the environment is called "explorer", right? Well, in linux, it is simply called "X". Now, imagine "X" rendered completely in openGL. Eye-forking-candy galore. The windows wobble, the entire desktop is built upon a cube. There are now finally true rendered transparencies. By far, this kills Vista and OSX's visuals, in my opinion. Also, it adds an expose-like effect when you press F12.
So, download the ISO and burn her to a disk, boot her up, and give it a try!
http://getkororaa.com/index.htmlThe download mirros have been hit pretty hard in the last day, due to a recent digg effect, but I got mine at a reasonable 200K/s last night.