The Ultrabooks are coming, and it looks like ASUS' first foray into thin and light computing will officially arrive on October 11th in New York. According to a UX series landing page, we need only wait 15 more days before getting our hands the ASUS UX21 and its larger, but still svelte sibling, the UX31, once again. Frankly, we can hardly wait for their arrival, but patience is a virtue, right?