Ubuntu Guide shows you how to install Gnome 3 (Testing) in Ubuntu 10.10 Maverick
Gnome 3 has just released and the gnome3-team ppa only provides packages for Ubuntu 11.04 Natty. It is said that Gnome 3 PPA breaks the original Unity desktop environment so it's recommended to try Gnome 3 on a virtual guest Ubuntu.How to Install Gnome 3 (Testing) in Ubuntu 10.10 Maverick