one of the new features is the unity desktop.
how to enable it?
1) Go to System
2) Select Administration
3) and Find Additional Driver
If there is no additional driver, that means your graphic driver is yet recognized by the Ubuntu.
The easiest way on what I did is, I just go to System>Administration and find Update Manager.
Then I just searched for unity. It will list all about unity files to be installed.
Select all about unity and it will be downloaded and installed.
Make sure there is internet connection as well.
After finished, just reboot your machine and your unity desktop will be activated automatically.
Happy trying ;)
Ubuntu is GUI based and it is really user friendly :)