With few exceptions, the most compelling Ultrabooks on offer there ( this, this, this and this, for example) were built with touchscreens to help make the most of Microsoft's upcoming, touch-friendly OS. Sure, you might be loathe to track fingerprints all over your 1080p display, or maybe you agree with Mr. Cook that tablets and notebooks are best kept separate.
ENGADGET: MacBook Air review (13-inch, mid 2012)