It is only a possibility now
but Jobs said he would consider it at year's end when the Mac OSX conversion is done. I am assuming that they are converting more MacOS applications to OSX, and beefing up OSX and fixing major bugs?
But imagine if OSX did run on cheaper WINTEL hardware? Imagine $600USD Macs with an AMD Thunderbird chip running at 1.6Ghz? To follow Apple's usual plans, they would most likely make their own hardware, ROM, and make it so that WINTEL OSX only runs on Apple made WINTEL systems. Maybe they will use an AMI or AWARD BIOS with a special ID code in it that WINTEL OSX checks for? If it isn't found, OSX refuses to run or install. Or maybe it looks for a hardware chip that only Apple WINTEL systems will have, sort of an electronic lock/dongle chip?
I am free now, to choose my own destiny.