Welcome to "Laptop Porn," an exciting series hosted by that lady who reviews notebooks sometimes. Here at CES 2013, Samsung is showing off a white version of its 13-inch Series 9 Ultrabook -- the same second-gen model that's been shipping since last year. What's interesting is that although this has the same magnesium-alloy frame as all the other Series 9 laptops, the finish feels different: it's smoother, and warmer to the touch. It feels so different, in fact, that we initially thought it was some sort of watered-down plastic version meant to be
