Most of the products Apple announced at WWDC won’t ship until later this year, but the new MacBook Air models are here. The MacBook Air didn’t undergo a dramatic, Mac Pro-like redesign – all of the changes to the MacBook Air are hidden under the hood.
Much improved battery life; improved flash storage and graphics performance
4GB of RAM is less generous than other non-upgradable Macs; 128GB storage may be too small for some