I was just thinking about the tapered design. And this is fairly wild speculation, but I thought I would toss it out there in case it happens to be true (7 more hours, guys.)
Most other tapered notebooks seem to have a flat back screen, but a tapered body (e.g.
Dell XPS). The
Wired mockups show both the body and the monitor are tapered. What would Apple be putting behind their monitor?
The
Wired article says: "But the Air seems more like a ultra portable with a physical keyboard and multi-touch screen, according to our source."
So if it has a multitouch screen, how is it used? I don't see the point in using a touchscreen on a normal laptop (would hurt your forearm), and it also seems to have a trackpad. Further, the tapered design suggests the monitor doesn't swivel or fold all the way around (which would leave the keyboard exposed, anyway), because this would result in a "super tapered" notebook.
Could it be (and this is wild,
wild speculation) that the monitor is housing some vital computing parts, and some sort of minimal storage/ram. You could take the head off, and it would boot into "OS X touch" (ala iPhone, iPod touch).
You would use this for everything you would use an iPod touch for (except maybe movies or music -- depending on the space), and it would actually be a functional touch screen experience (a touch interface to OS X probably wouldn't work as well as a custom-made setup like on the iPhone.)
Anyway, this is just totally wild late-night speculation, based on the screen being tapered. So take it with a grain of salt.