Today Microsoft and Samsung announced that Surface 2.0 aka Samsung SUR40 will be available for pre-order in 23 countries.
The Samsung SUR40 with PixelSense technology makes it possible for people to share, collaborate and explore together using a large, thin display. Recognizing up to 50 points of simultaneous touch, including fingers, hands and other objects placed on the screen.
Regarding Surface availability and current usages, read here.
Find the Surface 2.0 brochure here.