I have recently sold my Macbook Pro in anticipation of an ultra-portable mac notebook. I was hoping for something like the 12" powerbook g4. Instead, what did we get? We got the retarded (though good looking) brother of the Macbook. There's NO reasons to get a Macbook Air over the Macbook besides the supposed better battery life and backlit keyboard. The thinness does not add ANY extra portability. So, now I'm stuck. I have a few questions for Macbook owners. How is the battery life? Can it last maybe 5 hours with Wifi turned off? That's basically all I am concerned about. Apple is not offering anything smaller than 13 inches, so I might as well actually get a 13 inch product from apple that actually makes some SENSE.