Frederico Araújo Mendes has created a very interesting Unity mockup (video) in which he proposes better menus and a social networking widget layer.
In Frederico's Unity, you have a regular dock with some fixed icons and an area for items you open / pin. Clicking the Ubuntu logo in the top left corner will flip the "dock" (just like it was in the "2 sided dock" mockups) and here you'll have basically all the regular menu categories, but displayed on the dock.
This is a very interesting idea which I like because it feels a lot more consistent then how Unity looks right now. And the social networking widget layer is something I'd absolutely like to see in Unity.
This is not just another 2 sided dock mockup! Check out the video below:
What do you think?
Thanks to Frederico for the tip!