Check out this cool concept PC from designer Kyle Cherry, the Canvas.
The Canvas PC is designed to increase the quality and productivity of the User.
It features a touchscreen to control the PC and also a pen for freehand drawing on the PC like a tablet.
The toolbars and auxiliary information is displayed on the sidebars, leaving teh screen free for work.
There is also a navigation control on the side, this is great looking concept, and I would love to see something like this in the future.
via Yanko Design