Canonical has released their developer preview to four devices. The preview builds are not fully functional and are by no means daily drivers. Here is a solution to give you the Ubuntu Look and Feel while still being able to actually use your phone! This does not require Root and you will not need to install a Rom.
ADW Launcher: http://bit.ly/yso6Yg
ADW Ubuntu Theme: http://bit.ly/ZupBxF
Unity Launcher Free: http://bit.ly/XK0dmo