A new leak of internal documentation has provided a deeper explanation of the Microsoft Courier. The dual-screen tablet prototype has a fundamentally simple interface with two-finger multi-touch gestures: besides usual navigation, it would let users tap-and-hold to clip a photo or other object and a two-finger swipe left or right to move that object to the opposite page. The pen also has two buttons and an "eraser" to both switch between drawing styles as well as to remove recent changes.
