Comment by crazychrome

Were Steve Jobs, John Ive, Tim Cook and other Apple guys crystal clear about the theory when they started iPod/iPhone? I don't think so. Apple has a unique weapon called design and is willing to pay whatever it costs to enhance it. Its business is to use the weapon wherever there is a chance: mp3 player, tivo, mobile phone, watch and more to come. The rest is upon professors in business schools to figure out.