Just in case anyone was wondering the differences between the two, I have taken the liberty of a few shots of the two of them. Love my Air, but the new MacBook is really hot and will probably be my road dog for a while The new MacBook is very slim and extremely portable. More so than I had thought it would be. I was really on the fence about replacing the Air with the new MacBook but after seeing them in person in a store I was sold. I hope these pictures can help those that aren't near an Apple store in choosing. In all of the shots, the Air is on the left and the new MacBook is on the right. Enjoy.