Try this to install: http://ubuntuguide.net/how-to-install-elementary-o-desktop-in-ubuntu-12-04
https://launchpad.net/~elementary-os/+archive/stable https://launchpad.net/~elementary-os/+archive/daily Try this to remove if you don't like: http://askubuntu.com/questions/228996/how-to-remove-elementary-desktop-environment
