Here's a recipe for building a better Ultrabook: Start with the slim Asus Zenbook UX21A, graft on an 11.6-in. multi-touch capacitive screen and mix in the latest Ivy Bridge processors along with 256GB of solid state storage. With a spun aluminum case, the 2.4-lb. wedge-shaped Zenbook is razor thin at the front and measures 0.7-in. in the back. Its touch display can show full 1920 x 1080 resolution. The system has a backlit keyboard that automatically adjusts to the room's lighting for after-hours work and play. Asus will also have Zenbook Touches with 13.3-in., 14.0-in. and 15.6-in. screens.