Yvan,

I'm not currently at home, or I'd scan and paste the relevant part of the EULA here for you. A paraphrase though is that the License Agreement allows the owner to run Mac OS X on Apple Certified Hardware Only.

This is one of the reasons TerraSoft, the makers of YellowDog linux which comes with MOL and advertises running MacOS actually acquired a license to be an Apple Hardware Reseller. So yes, even if you buy OSX - you're still breaking the EULA. It seems like a stupid rule - but first and foremost Apple is a hardware company. People may see it as selling one more copy of OSX, but Apple has made it clear they see it as not selling one more Mac Computer.