"When the Intel CPUs ship the Mac will perform better, but they were going to ship machines that perform better no matter what. For the vast majority, yesterday's event was Apple theater, nothing more."
I'm not so sure. What about if Mac OS X does run all kinds of x86 hardware. It gives an alternative to the people who want to turn away from Windows but dont want to pay Apples hardware prices. Also, it gives the adware/spyware/virus writers access to an operating system that previously ran on PPC hardware only. For the next couple of years this change is no big deal. But who knows what will happen. Maybe OS X is a more secure OS than windows and the spyware/viruses will not effect it. I guess we will have to wait and see.