Ubuntu 4.11 full version will be released officially tomorrow (28 April 2011). This version will introduce the all-new user interface called Unity, which will be slightly different to the style of windows-style interface that has been used by us all. So, many users probably will be a little awkward with the new interface was first used.
Ubuntu provides a special page to introduce this new interface, and if you intend to recognize the new version of Ubuntu is more close, I encourage you to visit the following link;
