CNET has a writeup on the fist wave of Ultrabook laptops. These are part of an Intel program to design Windows based laptops to compete with the MacBook Air.
CNET: MacBook Air vs. Ultrabooks: The first wave
I think the most interesting thing is the price. At $900 to $1200 they are not much cheaper than the MacBook Air. So it does make one wonder, why would you buy a Rolex knock off when you could own a Rolex for the same price?
Methinks I would rather get the Air and just run Bootcamp.