I have not heard anything about Apple dropping Mac OS X on many of their computer models and using iOS instead, but I don't pay as much attention as I used to when it comes to Mac products. Do they use iOS on the iPads? I don't know. I never really considered buying an iPad.
I have heard stories that Apple is just about finished with Mac OS X and about ready to go to O/S 11 or whatever it will be called. But with Apple being so successful with iPads, iPhones, iPods, and other stuff like that, maybe they would just starting using an O/S that would work on a lot of different stuff.
Steve Jobs still controls Apple in my opinion with an iron grip. He is not healthy looking but as long as he is the CEO I think he will control whatever direction Apple decides to go.
He seems to be all in the direction of various consumer electronics stuff (iPhones, iPads, iPods, etc.) and mobile computing. It would not surprise me if someday Apple dropped the MacPro desktop computer and maybe even the iMac. I think desktop computers take a back seat today at Apple. Which in my opinion is going too far because there will always be desktop computers especially in the business world, government, and industry. But Apple is not too big in those areas anyway.
Eventually there will be a new CEO at Apple but who knows what direction Apple will go then. Apple has an almost fanatical fan base. A lot of Apple users are as dedicated to Apple as some people are to a certain make of motorcycle or certain make of pickup truck.
I don't like how expensive Apple computers have become. I think if Apple made an affordable desktop computer (not all all-in-one) they could really increase their sales and their consumer base. And I personally cannot stand the attitudes of some people in Apple management. I think these areas here are perhaps where Apple is making big mistakes. I think they are making other mistakes also, like not looking down the road to where they will need better security, etc. But with the attitudes I feel some have in management I doubt they would see any problems coming.