I've mentioned the lack of competition in the ultra portable market vs the macbook air in performance, price and portability. That changed a month earlier than I expected with the new Asus Zenbook. Brushed alu body, from 0.11 to 0.71in thick, 11 and 13" versions, as light as 2.43 pounds, 1.6GHz Core i5 to 1.8Ghz Core i7 cpus, and a non-widescreen 1366x768 or 1600x900 screens; starting at $999. The Zenbook comes with more ram and a larger SSD by default - an MBA with 4GB RAM and 128GB SSD costs $200 more. (edit: also, the Zenbook's SSD is an SATA 6.0 part, so faster drive response if the actual SSD can fill the pipe). There doesn't seem to be a 256GB SSD option, or a higher res screen option for the Zenbook on the higher end, however. It looks like a nice machine, and good option for windows-only users who travel a lot but don't need those extra 4 battery hours (business travelers on ~3 hours flights, students with <2 hour classes, etc). http://arstechnica.com/gadgets/news/2011/10/first-ultrabook-to-market-meet-the-asus-zenbook.ars link to the zenbook website itself: http://zenbook.asus.com/ edit: removed battery life reference, as my numbers were wrong.