I rue the day when Apple has to try and lock down OSX like MS is forced to attempt with Vista!
OS X doesn't even have a serial number in the boxes. Apple's lack of caring of this extends to the point where they haven't even bothered to have the ability to tell the difference between a pirated copy and a legitimate copy of the OS. I don't see tyrannical anti-piracy policy coming anytime soon, and I don't see Apple taking drastic measures to prevent OS X on beige boxes soon either.
Everyone seems to be forgetting the math of piracy. It's not
gross profit = (unit price) (units in use - units pirated)
it's
gross profit = (unit price) (units in use - units pirated + sales gained due to piracy)
This will be especially noticeable in Apple's case, where people that might never otherwise have the opportunity or inclination to try out OS X download it onto their PCs, fall in love with it and their next computer is a Mac. Not only has Apple made a software sale, they have also sold a piece of $2k hardware with a 20% profit margin. I personally know people that have done this.
I think that prettymuch alone of large software companies, Apple sees the other side of piracy. It's never a given that you're a pirate OR you buy software/music/movies/games/whatever in stores.