Now if Apple made it real hard to play any content from ITMS outside of Apple products, that may be cause for concern. And they did get slapped on the wrist about ebook pricing.
Now, it can be argued that Apple has enough of a vertical stranglehold that anti-trust rules can apply. It doesn't have to be an absolute monopoly to violate anti-trust law.
And i do believe Apple has gotten a slap or two on the wrist for abusing their hold on content distribution. Ebook pricing for instance.
Were all servers, mainframes and dumb terminals counted too? Back in the nineties I'm sure those counted for something compared with PCs.
Apple has a complete monopoly on the iPhone / iPad market and that market is bigger than Microsoft's market in the 90s. You cannot change the OS without changing the hardware. You cannot change the browser without changing the OS. PCs and Windows never had such restrictions.
So what's the difference? If you answer that the PC was an open standard whereas the iPhone is Apple's own toy, I personally don't think that's fair, given that Microsoft too has built the PC market ;-)
?!? Of course they do, just like Nintendo has a monopoly on the 3DS market, and Porsche has a monopoly on the 911 market, but that's just tautological.
If you meant "Apple has a complete monopoly on the smartphone/tablet market" then a 3 second Google search will show you that this is completely false.
Microsoft dominated the Personal Computing market. Apple is dominating the iOS market which is a subset of the Mobile Device market. I can buy a mobile device and experience the social and personal benefits from dozens of players.
And bringing it back to the point at hand. The reason Microsoft got in trouble is not because they had a monopoly. But because they used that monopoly to unfairly attempt to create another monopoly when a new competitor came into the market. Safari always shipped with iOS. There was never any competition to begin with.