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Here's one for all you lovers of futuristic interfaces. An interactive hardware company called Displax has begun marketing Skin, a paper-thin, flexible film that would transform any non-metal surface into an interactive touchscreen.

"Since 2006, academics at the University of Surrey have been using a 'clicker' based Electronic Voting System (EVS) to engage students and promote interaction in their classrooms. Although the system has served the University well its reliance on proprietary hardware has limited wider adoption. An issue for students was the need to book clickers out from library services and carry additional electronic devices around (not to mention the prospect of incurring a fine if they lost them). For staff, getting the USB 'dongles' (receivers) to pick up the signal from the clickers at the beginning of the lecture was a concern. The time and resources required to manage and distribute clickers and dongles were a further consideration, as were long-term maintenance costs for the institution."