One problem with licensing and so forth is this
It won't be same. The idea of control frealiness was to make sure it will "it just work". Allowing os x and ilife on non mactel would only mean Apple get blamed if it cause a poorly built computer to explode. This is kind of liability Apple can't afford right now.
Besides, with their present controls they're in a relatively safe niche. I say that because the paradigm surrounding "it just work" is a niche in itself; there are some people out there who want/need such machine.
Ill agree that Apple should tread carefully and change their plan, but not by licensing or cloning.