What Is Monopoly Power?
Apple doesn’t have “monopoly power” (its market share isn’t even that big) in the markets for laptops or smart phones. What Apple has is intellectual property—operating systems.
The definition of "relevant market" is crucial here. In a good comment thread, the issue is fleshed out a bit. It's complicated though. A lot of my work involves this issue so I'm not going to write about it here. I will point you to this related development from the past few years - the Bush DOJ's policy on Sherman Act Section 2 enforcement (PDF) and the Obama DOJ's withdrawal of the policy. Now talk amongst yourselves about it.
Speaking (or not, as the case may be) for me only
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