I need to a ultrabook , a really portable laptop. At WWDC, Apple released the new Generation of MacBook Air. The specification is upgraded the new Intel CPU, haswell. That sounds better than the option I was considering Lenovo Carbon X1 which is using the Ivy Bridge. Moreover MacBook Air sounds to have better battery life. Do I should buy MacBook Air, right a way. or Wait. There will be more Haswell Ultrabook in the market very soon.