Who cares if Windows Vista will run on Intel Macs? Nobody, except two geeks and one journalist. Who would want to run a flawed operating system like Vista on such a well-designed hardware when there are already great operating systems like Mac OS X or Linux?
Well, Microsoft cares. I would say Microsoft doesn’t want Vista to run on Intel Macs for a reason: if Vista runs on Intel Macs, many people will start buying Apple computers. What will happen when they boot their new computer and find themselves staring at Mac OS X? Probably they will fall in love with it. Probably not. Anyways, Apple would have earned a few bucks for the hardware.
If Vista is able to run on Itanium, which uses EFI, why then Vista won’t run on Intel Macs? I guess Microsoft doesn’t like Apple’s income to raise, and thus will try to prevent Vista from running on Apple’s hardware.
Just my opinion, of course!