This is a screenshot of a UI (Similar to Gnome) that would make me switch to whatever OS it was running.
I am using a mac, but this would get me using Linux.
Basically the main innovation is the series of rectangles that you can see in gedit's toolbar (I was too lazy to do more icons), and in the app-launch bar (dock) at the bottom. Commands are divided into categories, each with an icon, that, once clicked, expands its tray of items while the other icons get out of the way. Elegant and simple.