Matthews is Correct - It's wrong for MS because...
Comparing Apple and Linux with what Microsoft has done and why it is constantly being questioned on monitored is ignorant.
Microsoft gained their monopoly via predatory and malicious practices. This was proven during a lengthy trial.
Apple has no monopoly other than over their own equipment. They also strive to keep their browser standards compliant.
How in the world could you conceive that a free operating system could achieve any sort of monopoly that isn't purely user driven.
And in the case of at least Ubuntu - sudo aptitude install firefox will get you a browser just fine. It's only because of MS's ridiculous system that you can't do other wise. (oh and too stupid to type just open synaptic and have at a few thousand programs.)