One thing I haven't seen mentioned yet, though, is this question: How long after OS/X-on-Intel comes out will it take for there to be a Wine-on-OS/X? And, when it does, will it be an GPL'ed Wine product, or will it be an Apple product?
If Apple can produce a MacOS that runs Windows applications, even in a limited way, that would be a very interesting answer to the "there's less software for Mac" and "the software I want to use doesn't run on a Mac" arguments. I don't know whether it will actually be possible, mind -- I don't know how close the hardware architecture needs to be for Wintel applications to run on a non-PC i86 computer, nor how close the Mac architecture will actually be (my guess: not especially), but it's a nice thought.
How about it? Alexei? Eric?
(Yeah, yeah, I know. "It is Apple's policy not to comment on unreleased products.")