If the repeatable method is, as mentioned above, "Smaller, faster, focus on human usability, make it look nice.." then we all win regardless of whether Apple does.

Try to do it better. It's inevitable that competitors are going to copy. I'm not sure Jobs could have stopped that either. Apple has some huge strategic advantages and big war chest which definitely helps.

Unless they can "start implementing" tens of billions of dollars sitting around to use for pre-purchasing heavily discounted parts for their devices to drive profit margins high as a kite and low as a rock for competitors, I don't think there's much to worry about.