Of course everyone is curious to see what is different. Difference is that the new MB AIr is built and released with its own special build of 10.8.4 that supports Intel Haswell. There is no reason for Apple to release Haswell support across the board for any other Apple unit as none are built with Haswell CPU's yet.
But if I buy a MacBook Air and I make something wrong and I need to format my PC what kind of ML I must install to get it run, in Apple's opinion? Must I wait until the Mavericks release?
so, credits for the kernel?