In reference to MaydayMark's post, I'm guessing Apple added a driver for the USB/Ethernet port because I had the typical Apple plug/play experience with mine. I have a later version of the MBA. As mentioned, the optical drive could be an issue but it depends on the owner. I don't watch many movies and don't own any DVD's so I don't really need it. If I have a dead head, I'll just pay the $3.99 and rent a movie from iTunes (download). Also, if you have any other computer (even PC) in your household, you can use that optical drive and the Remote Disc program on the MBA. I store mine in my PNT bag in the flat front panel that most people keep the USA Today. The 13" MBP doesn't fit there, even though it's only slightly bigger.