NEC is jumping into the Ultrabook market this summer with the Lavie Z ( name subject to change, according to the company). The company says that they will use lithium alloy magnesium, “in the body of a PC for the first time in the world”, to achieve a sub-1kg weight on an Ultrabook with a 13.3″ screen — something we’ve yet to see. NEC is apparently holding a competition where you can guess what the lightest model of the Lavie Z will be, and if you guess correctly you could win one!

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