Microsoft DisplayCover puts an e-ink touch display in a keyboard

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Second screen can be used for UI functions, icons and tiles, touch interaction and more.

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Remind anyone else of the Concept Keyboards?

http://chrisacorns.computinghistory....bd_A4-128.html

These were popular in schools because the one computer literate teacher could write command down on each square, so rather than remember a command, you only had to be able to find it.