Lost in the "Back to Mac" event is a statement by Steve Jobs that prove that the new Macbook Air may well represent the future of traditional computing, at least in Apple's roadmap.
Jobs said that "We think all notebooks will be like this someday" and we sincerely believe this will be the case one day.
Like so many others, I've been on the lurk for an ultra portable notebook that can last 12 hours on a full charge, comes with instant-on and always connect capabilities for the past two years (and the guys at ARM can vouch for that).
The new Mac Book Air, especially the smaller (and cheaper) 11.6-inch model one comes close to it, a real feat given that MBA still uses the old Intel Core 2 Duo processor and yet manages to offer instant resume, thanks to the fact that Apple uses its own OS rather than Windows.
Yet, both Intel and Microsoft should be worried; the smaller MBA can be compared to a slightly bigger iPad with a proper keyboard.
It has roughly the same pixel density and weighs just over 1Kg. Now, if Apple can achieve so much with an obsolete processor, imagine what the Cupertino behemoth could do with a streamlined A5 (or A6) SoC based on the ARM Cortex A9 processor.
Apple has showed before that it won't shy away from unceremoniously dumping legacy hardware when it moved from the PowerPC to the x86 platform.
I wouldn't certainly bet against it doing the same again, this time moving from Intel to its own inhouse architecture, not long after having perhaps acquired ARM.