I don't know, but I love that it makes you angry.

Apple wont drop below the advertised 7 hours of the current Air 13inch. And having "retina display", depending on the resolution( between 260 and 220 DPI) means Intels integrated graphics wont cut it. They will have to add discrete graphics. All that means you will have the first ultra book with a graphics card and decent battery life at a class leading resolution wrapped in the light and extremely thin Air chassis.

I bet it will cost north of 1800 though, so not the general buyers price range. But if you wanted the BEST speced ultra book, probably the best built, with the highest screen resolution, the AIR will be your only choice.