not the law that matters
It may be true that it would be difficult to prove that Apple holds any kind of monopoly power. An exception would be monopoly power on Apple compatible PCs and Phone. And yes, they can be proven to be separate markets for antitrust purposes. Not yet perhaps. The Psystar case lost primarily because Psystar was violating copyright laws. And a antitrust argument is not a defense against that regardless of what they did.
But, the real problem is that antitrust authorities simply do not care to enforce antitrust law.
You can make up stories about antitrust has changed Microsoft but Microsoft still illegally bundles IE with the OS. And, yes, the US Appellate Court decided that commingling code between the OS and IE was in fact illegal. But, the stupid US DOJ acted to make sure that the illegal acts continued unabated. And today IE is still illegally commingled with OS code. (Not once did Microsoft uncommingle the code).
Then along comes the EU Commission and they do nothing either.
Sure, there is a ballot screen but IE remains a forced purchase by anyone foolish enough to use any Microsoft product. And that illegal act precludes any possibility of a fair and open market for browsers ever. Not until the OS monopoly goes away can any fair and open market exist.
So if you have two antitrust authorities so stupid so as not to even understand what they do and then fail completely to stop Microsoft's illegal conduct, there is no doubt that Apple will engage in illegal activities as well. Apple lawyers know that antitrust authorities can simply be bought. Or, persuaded politically. However you want to describe the complete failure to block Microsoft from forcing the sale of IE upon everyone in the marketplace.
And yes, you can argue that Apple does not even have monopoly power. Yet, anyway. They do in Apple PCs. PCs that run the Apple OS. That is a monopoly.
The question remains how effective such power actually is.
If Apple blocks Google ads on the iProducts, those products lose value. As stated in the article, the Android OS is ready to serve as a ready substitute for the Apple OS on phones. And that is likely to be the result. And the more arrogant Apple appears the quicker Android will take over the marketplace. I doubt that any technology alone is going to be significant enough to maintain the market power Apple thinks it has. As the ads say, without restrictions, droid does.
It is really sad it see ignorant antitrust authorities in the US and the EU. Pure stupidity on their part. It encourages not only Microsoft to continue illegal practics but also tells Apple that the authorities are just not relevant. And they are not. Microsoft continues to forced sale of IE upon everyone. And there is no developer anywhere on the planet that can not understand what those forced sales might mean to their code. NOBODY can be so stupid not to understand that.
Got a product to sell? Get a monopolist to force everyone to buy it. No problem. No marketing required. No intelligence either. In the product or the marketing. Just force all of the idiots to buy it. If you have a copy of IE anyway, you are an idiot. You paid cash money for IE and your opinion simply does not matter.
What a job if you can get it? Just force all the idiots to pay cash for your product. And all of the idiots do precisely that. Cash goes out. IE shows up.
You can blame Apple for seeing the obvious. Authorites do nothing if you can buy them off.