Interesting take on a “Touchscreen” display from the Microsoft Applied Sciences Group:
The Microsoft Applied Sciences Group has been exploring input devices as a means to extend the desktop experience to peripheral hardware and in 2009 the Microsoft Adaptive Keyboard was born. This keyboard featured a large, touch-sensitive display atop a keyboard that continued underneath the keys … However, there has been little to no research targeting devices whose limited screen size is a concern (e.g. Surface).
The DisplayCover supports dynamic UI manipulation as well as gestures and custom track pad interactions, this means that the current application can define the available interactions that are appropriate for the task at hand, some of these features are demonstrated in the following video: