Jared Spool, the CEO of User Interface Engineering, a usability research firm, agrees that Toshiba is thinking about tablet design in a way that its rivals aren't.

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But while there seems to be no consumer demand for larger tablets, the use case of watching movies as a group, or flipping through photos with loved ones on the couch, on a 13-inch slate isn't too hard to imagine, says Jakob Nielsen, principal at the Nielsen Norman Group, a usability research firm.

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