ASUS expands its Zenbook line of Ultrabooks to include 14- and 15-inch models

About a year ago, when Ultrabooks were first starting to go on sale, ASUS was one of the first out of the gate with some lightweight, Intel-approved ultraportables. Since then, it's released a handful of iterations, including redesigned models with improved keyboards and sharper screens. That's a lot for a 12-month period, but there's one area where it fell behind: it tended to ignore larger-screened ultraportables, even as its competitors started selling models with 14- and 15-inch screens. Tha...