A paper-thin smartphone by human media lab that you interact with by bending the page:
PaperPhone is the world's first nextgen, thin film smartphone and interactive paper computer. It is based on a 3.7" flexible electrophoretic (E Ink) display that does not consume electricity when it is not refreshed. Thinfilm sensors allow the phone to respond to bending of the screen to navigate pages in ebooks, play or pause mp3s, make phone calls, or navigate apps. A flexible wacom tablet allows users to draw on the screen with a pen as if it were a sheet of paper.