This is another Conceptual Image, more in tone with current Linux desktops.
A top Panel displays the Username, this would be a button which would contain shortcuts to stuff such as system settings, power off, restart, log out options and the like.
In the bottom there's the Task Manager displaying currently running applications.
The File Manager presented here follows the design of my previous concepts, a simple Manager, with a simple Interface.
The sidebar slides out when activated and gives the user basic actions to do.