[int_19h]

They did waste legal resources going after commercial Hackintosh clones, though, and they might want to prevent something similar in the future. And once they have their own unique CPUs, adding a CPU ID check is trivial.

[nutjob2]

And defeating a CPU ID check is trivial.

Companies selling hardware that is "Mac compatible" and profiting from that is a very different thing. Apple clearly cares about that.