I don't think Apple released Boot Camp to completely take over OSX, because you can still run OSX. I think, rather, that Apple is trying to supplement OSX, by allowing people to run programs that they have for Windows.
A few weeks ago, some people might have been on the fence about going to Mac, staying with Windows, or whatever combo you may have. Now that Apple has come out and basically said, "Well, come on over to OSX. Oh, you have some Windows applications you need to run? Ok, we'll take care of that."
And think about how much money that saves the consumer. If you've absolutely had it with Windows, and WANTED to switch, but say, for example, didn't want to buy another $600 version of Photoshop, you could still run it on Windows at NORMAL speed (or maybe even better, as some of the benchmarks indicate). No "Rosetta" like application needed, no Virtual PC, but Windows, plain and simple.
I really don't think that the OSX is going to just go away because you can run Windows, like I mentioned before, the main idea is to HAVE OSX and if you want to, put Windows on it.
I'm hoping that you won't be able to buy a Mac with both Windows and OSX loaded on them, I think it should be a personal preference, therefore keeping the Mac OSX alive and well!
So today I was in my local compUSA. I walked to the apple section and there i see it a macBook pro, Imac, and Macmini all runing windows. I wasnt suprised to see bootcamp but to have it running on the 3 main machiness?? werid. I hope boot camp wont take over, i love OSX.