Apple goes back and forth on that, I think. Sometimes they discount the importance of marketshare, but when the iPhone was dominating everything else (in the beginning) they trumpeted it pretty loud. Same with iTunes. As long as quality doesn't go down, I don't mind market success. But, if Microsoft Windows is any example of what it takes to be a market success with Operating Systems, then I'm very happy for Apple's Mac OS X to stay put. The iOS on the other hand, I don't use anyway except for testing.