Come on! I'm a very Windows-guy, having favored it because, being a standard, it ran stuff I couldn't do on a Mac (CubeExplorer, anyone?), even if Mac has some good products and has a lot of native support for programming.
I have a friend who is devoted to Macs, and I argue against him (of the 5 of us, he like Macs, one uses only Linux, one doesn't seem to care, and two of us only have Windows because it works at all).
The Air, I noted, is insane (the Matyas Kuti of computers!). It performs better than my current laptop in every aspect, is really thin, and can
still runs Linux
and Windows!

It, like, does everything! My next computer was going to be a Mac (though how long it will take for me to acquire one is another issue...), and if the Air turns out not to have major flaws, I
so want one!
EDIT:
Oh, did I mention that Microsoft did a pretty good job of preventing me from backing up my laptop data (and thus making me constantly worry about it), and then Apple came out with Time Capsule?
Wow, they know what they're doing at Apple!