[citation][nom]zerapio[/nom]Could you explain how Apple+ARM or MS+Intel are monopolies?[/citation]
If ARM products are cheaper than their competitors, then by preventing others from using the technology, Apple will be forcing their rivals into using more expensive technology and thus potentially raising their prices. Regardless, it may cut some of Apple's expenditure having ARM on board instead of making their own chips.
I'd have been more concerned if this was about buying Qualcomm, though.