When you look back at the history of Ubuntu through the years, you will see that, Ubuntu Unity is *the* most significant change ever happened to Ubuntu. Ubuntu Unity is a really interesting idea with limitless possibilities. Now, here are some innovative user created Ubuntu Unity UI mockups/ideas you might find interesting.
Ubuntu Unity Desktop Mockup
Ubuntu Unity Dash
Ubuntu 11.04 Natty Narwhal's first alpha release happened almost a month ago and the final release date of this crucial Ubuntu release is fast approaching. And Ubuntu Unity UI is evolving quite fast enough. But the next Ubuntu release is not just about Unity alone, a number of other changes are also in the pipeline. Here is quick list of things to look forward for in upcoming Ubuntu 11.04 Natty Narwhal. And you might also want to browse through the different mockups/concepts we had featured here before.