One thing I've often thought with Apple is how much worse off the PC industry would be if they were ever dominant, because they're such a belligerent company. But a more level-headed way to view Apple's recent push-backs from the top of the heap is that they're suffering from exactly the same problematic mind-set that doomed Microsoft a decade/decade-and-a-half ago, back when antitrust regulators from the FTC and DOJ first accused the company of illegal anti-competitive behavior. That is, they're just a product of their history.
What I mean is, until very recently, Apple was the underdog, and they've been the underdog for almost their entire existence. This creates a certain mindset, and under Steve Jobs especially, it's created a very aggressive competitive spirit. This aggressiveness is fine when you are literally the underdog, just as was the case with Microsoft early in its career and it was trying to wrest the PC industry from IBM, Lotus, WordPerfect, and other tech dinosaurs. But once you have a dominant market position, that aggressive behavior--so important for an up-and-comer--isn't just bad, it's illegal. It's just hard to turn it off when it's been part of the corporate psyche for so long.