Sad to see so logically flawed argument getting upvoted—that means many of us don't bother to think any more and vote purely on "four legs good, two legs bad" mentality.

  The worst enemy of freedom in software is not Microsoft,
  it's Apple.

Makes no sense. Neither MS nor Apple are enemies of freedom of software. Apple is using a lot of OSS, contributes a lot to several projects, pushes for open web.

  You're pretty free to develop and distribute software as you want on Windows.

And? You are just as free on OS X. And OS X kernel is open source. Can you get Windows kernel source?

  On new Apple devices, they control the way the software
  is distributed

Yes. And that's because it's a win for majority of the users of said devices, not because Apple is "the enemy of free software". BTW, how does an Apple App Store compares to Zune marketplace? I guess the latter gives you more freedom?

  they tax you,

Huh?

  they make you obey their rules

And who doesn't? If you don't like the rules, don't buy Apple is as simple as that.

  Imagine a world with appstore as the main way of
  distributing software for any kind of devices.
  This would be hell.

That would be hell because? That would be hell to whom? To those who want to have a convenient way to buy apps, without worries about making backups, with easy way to get upgrades, without a fear of getting malware?

  Stop using Apple.

No, I won't. It gives me the biggest freedom so far.

  Use Linux

Then worry more about making linux more useable to ordinary people, who care about usability, not some fuzzy freedom ideals.

  or if you can't, use Microsoft.

Thank you, but no thank you. You don't need Apple to tell how you use your devices, I don't need you to tell what I should or should not use.