Seventeen North Carolina companies are exhibiting their wares before the globe this week at the Consumer Electronics Show in Las Vegas. From Lenovo, which is unveiling both its first PC game and a gaming-oriented curved-monitored PC to play it on, to Valencell, the Raleigh sensor company whose executives have initiated high profile partnerships at past CES events, the companies are varied in scope and size. And they're not fully representative of the North Carolina innovation debuting at the show. Tony...