According to Microsoft
“Microsoft Surface represents a fundamental change in the way we interact with digital content.
With surface, we can actually grab data with our hands, and move information between objects with natural gestures and touch.
Surface features a 30-inch tabletop display whose unique abilities allow for several people to work independently or simltaneously. All without using a mouse or a keyboar.”
Check out : http://www.microsoft.com/surface for exciting video clips and other information on surface.