I have been using Ubuntu with Gnome desktop ever since I have heard of Ubuntu and I was very excited about the new Unity Desktop in Ubuntu 11.04 Natty Narwhal but it really didn’t impress me much. I would better like to use new Gnome 3 over Unity.
Here is simple steps of “how to install Gnome 3 over unity desktop” -
1. Open terminal (Ctrl+T) and hit following commands
sudo add-apt-repository ppa:gnome3-team/gnome3
gksu apt-get update
sudo apt-get dist-upgrade
2.You are done, Yupp it’s really simple