One of the most striking ideas on show was PaperTab, an early prototype of a tablet computer flexible enough to roll up like a newspaper. PaperTab was created by the Human Media Lab at Queen’s University, Canada, with the assistance of Plastic Logic, a U.K. company that makes flexible display technology. In Las Vegas, Aneesh Tarun and Roel Vertegaal from Queen’s showed off the prototypes, which still require tethering to a power source.