Earlier quoted context omitted.
iOS is a product FROM Apple. They have the right to do whatever they want with it - same for Amazon and the Kindle. Microsoft didn't "have a monopoly on Internet Explorer" - they had (still have?) a monopoly on COMPUTER OSes, which they used to force-feed everyone with a BROWSER. It would be a monopoly if Apple's iOS ran in 90% of the phones in the world, but that's not the case today (nor in the foreseeable future).…
I don't see much difference between how "Microsoft force feed everyone with a browser" and the way apple does, only that Apple is worse. iOS is not a product(you can't buy it separately, can you?), it's a platform that many developers make a living on. When I am saying iOS market, I am actually saying iOS software market.
As for iOS, you don't HAVE to buy an iphone today. NO ONE is forcing you to develop on it. In fact, less than 1/3 of the smartphone owners do have one - And THAT's the distinction: choice. Argueing "it's the same thing" puts you on the same boat as that chinese clone manufacturer that sued Apple because they "didn't license their OS for anyone": it's THEIR product, they do whatever they want with it.
As for iOS being a product on itself, you're right - it's just the software that powers Apple's hardware, not an "isolated" product. Same as Kindle OS, WebOS or Bada, not the same as Android and Symbian, which are sold/licensed to third parties...