So it turns out that the MacBook Air’s battery is a single discrete block (albeit a very thin one) that runs across the bottom of much of the case, and it’s relatively easy for an end user to swap out. Some people are calling this good news, but to me it just means that there really is no reason bar cost for not making the thing user swappable in the first place. I guess it might have meant weakening the case, but I’m not convinced; this is Apple, after all — I’m sure they could have come up with a neat battery removal mechanism if they had the will (I’m thinking a covered slot on one side of the device that you slide the battery into — like a really big PCMCIA card). I guess they’re just experimenting to see if people are prepared to put up with it. Lets hope people don’t an Apple fix this in the next version.