Beryl
Today i read a post from planet larry about latest nvidia driver and beryl.I decided to give it a try although i am not a big fan of 3D desktops.The result i admit, it left me amazed.The setup was very easy to achieve.I just emerge the latest nvidia beta driver (1.0.9626) then emerge beryl with help form this wiki page and configure and update xorg to version 7.1 .Finally i reboot, login to gnome, started beryl-manager and all is ok.Here is some screenshots