I think the iPhone started taking off only after the app store, so it should be counted as a factor. Also - a lot of the story is about marketing, creating a h

I think the iPhone started taking off only after the app store, so it should be counted as a factor. Also - a lot of the story is about marketing, creating a huge status symbol and convincing people to pay so much for it, and that money fueled to reach faster and further than it might have reached otherwise.