I agree that the obstacles to entry are much lower for Apple now. But there is still a significant price premium for Apple laptops. Maybe it's not consequential for people that can afford to pay tuition in a Western university but for the rest of the world that premium is still decisive.
Which is exactly why competing tablets haven't gained ground. Why buy a less usable device for the same price? Things in the tablet market will only get interesting when and if Android vendors can significantly undercut Apple.
