And yet, on iOS you can only use the bundled one and nothing else.
Opera Mini, released 2010, and Opera Coast, released 2014
Google Chrome, released 2012
News regarding Firefox, due for release at some point soon
iOS requires that if you use a browser engine in iOS, it must be their version of WebKit for iOS, which is how Chrome and Coast work, but there are ways around even that, and there's nothing stopping you from building a better browser than theirs on top of their engine, which is exactly what others have done. Additionally, Opera Mini gets around the engine issue by moving the rendering to cloud servers. No idea how Mozilla is approaching it.
Have we forgotten the whole MS Antitrust fiasco? You remember that Microsoft WAS FINED because they bundled a fucking WEB BROWSER with their OS and made it the default, right? MS didn't force anyone to use it.
The distinction that people always seem to forget is that it generally isn't a matter of what you're doing, but is rather a matter of how you're using it. Going off your own example, there's nothing inherently illegal about bundling a browser with your OS. We see devices do this all the time; most of the console manufacturers have built-in browsers with no way to change them, for instance. And there's nothing inherently illegal about doing so well in business that you end up dominating a market; Amazon controls something like 90% of the eBooks market, for instance. But, especially as you get larger, you have a responsibility to not engage in practices that stifle or cripple competition. The market is supposed to be an even field to compete on. You're not allowed to rig the game.
In the case of Microsoft, there were allegations that they were intentionally rigging APIs in Windows to cripple competing browsers. On top of that, downloads back in the day took quite awhile to finish, so the fact that IE was bundled on the disc for a unrelated product that had a dominant market position (Windows) provided them with a seemingly unfair advantage over the other browsers (I don't know that I agree it was unfair, but whatever). The biggest issue, however (at least in the US case), and the piece that everyone forgets, is that they had reached a settlement back in '94 with the FTC that explicitly disallowed them from bundling other products with Windows, since the FTC had accused them of abusing their dominant position in the OS market to gain illicit advantages over their competitors.
THAT'S what made their bundling of IE illegal. Were iPhones in a similar market position and being used to allow Apple to push out competition in related markets, you can bet that Apple would have regulators breathing down their neck too. As it is though, Apple may be a big company, but their influence is no greater when it comes to these areas than that of their primary competitors.
LOL. And Microsoft is still evil.
Well, yeah. So is Apple. So is "don't be evil" Google. Suggesting Microsoft isn't evil like the rest of them is just naive. They just took it a step too far and got slapped.