MacBook Air doesn't have a user-replaceable battery

We sort of understood it with iPods, and we grudgingly accepted it with the iPhone, but the MacBook Air has a sealed, non-user-replaceable battery, and that means we're suddenly a lot less in love. We're digging for details on how much it'll cost to swap out -- and what Apple expects road warriors to do when their slick new ultraportable dies on the go, stick with us.