^ Or Wintel computers run Mac OS better than Apple comuters. It's all in your point of view. It's conceivable that Apple could lock out Windows with a hardware or firmware design change, if they chose to do so. Something to think about in these increasingly mean times. Kind of like they way they killed Adobe Flash, not as if that will raise any sympathy these days. Will continue to use PC's, since I'm not religious.
Speculation can be fun but revisionist history is another matter ... Yes, Steve Jobs came down against using a Flash player on mobile devices ... and we don't have a flash player for iOS because of that spat and that Adobe never really came up with one (so that even cut out the jail breakers) ... though that could boil down to the chicken or the egg conundrum ...
However, Flash has NEVER been "killed" for OS X ... While it is no longer pre-installed, Apple has done nothing to prevent it from being installed and used. I know the Flash plugin is on all my OS X machines ... use it every day. If Flash is dead or dying, it's not necessarily due to Apple or Steve Jobs ... it's because of HTML5 and now all those aspiring, young web designers won't have to pay a king's ransom to Adobe for Flash CSx (or CC) to get on the playing field.
I could see a time when Apple may not be inclined to offer an in-house, easy solution to run multiple OS brands ... but a full fledged lock out? ... of course it's possible ... but at this point in time, I don't think it's very probable ... Either way, as we have learned this week ... it is always prudent not to put all your eggs in one basket ... After all, working with only a single software solution is about as smart as showing up to shoot a wedding with only one camera ... bad things are sure to happen before you are finished.