They don't. Apple gets away with stuff today that would have made Bill Gates blush in 1998. Imagine if Microsoft was able to just ban any competing browser f

They don't. Apple gets away with stuff today that would have made Bill Gates blush in 1998. Imagine if Microsoft was able to just ban any competing browser from running on Windows. We wouldn't be here debating if Chrome is the new IE. IE would be the same old IE (and the web would be a lot worse off today).