I don't disagree that it's a good idea, but Apple has an advantage here in that they make their OS for their own hardware, and therefore don't have to pay an ex

I don't disagree that it's a good idea, but Apple has an advantage here in that they make their OS for their own hardware, and therefore don't have to pay an extra dime for each copy. Hardware manufacturers have to recoup license fees. It's a similar situation in the smartphone market. I don't doubt that most would prefer "pure Android" if given the choice.