Ubuntu 12.04 LTS is released, unfortunately Unity is still the default interface, if you want to go back to classic Gnome as I do, below is how to:
Gnome session package name has changed from 11.04 to 12.04, the new package name is gnome-shell.
First, start Ubuntu software center as below:
First, start Ubuntu software center as below:
then type "gnome shell" in the search bar, then install GNOME Shell.
Logout then login, you can now select Gnome Classic in the login screen: