For all of those who were concerned about the lack of DVD, battery life, etc. on the MacBook Air I can tell you that I have been using the computer very successfully with no issues for a month now.
While I am sure that I will be bored of this machine in a few months it's a non-issue compared to the alternatives: the burden of a pretty giant MacBook, or switching to Windows.
The only problems I have run into are the same things that I have experienced with every Apple laptop; the fact that 'sleep' doesn't always mean sleep, and that the chronic scanning for wi-fi takes up a fair amount of battery life if you aren't paying attention.
Otherwise, the computer is great. Light, easy to type on, and fast enough for pretty much anything but video editing.
Even though the Woz isn't that into it I think the only issue is that it's a bit too expensive.