The form factor and light weight of the MBA make my mouth water. That's the reason I want one if it gets a significant update, although I recently bought an iPad. Even in its present iteration, the MBA is a real computer, capable of doing real work. The iPad, alas, fails to deliver, particularly in the document creation area.
Unfortunately, the current MBA, although a real computer, lacks the horsepower to handle resource intensive apps, such as VMware Fusion running Windows in a virtual machine. All of us who require a lot of resources to be available on our laptops, are just going to have to wait and see if the upgraded MBA will work for us -- if there even is an upgraded MBA. Sorry, that was cynical of me but it's hard to dismiss the possibility that Apple could quietly let the MBA quietly die on the vine. For the moment though, I an going to get obsessed and stay obsessed about a new, more powerful, MBA.🙂