Also note that he's conveniently forgotten to mention Calculator, Calendar, Contacts, Dictionary, iTunes, Maps, and others that I can't be arsed to list, all of

Also note that he's conveniently forgotten to mention Calculator, Calendar, Contacts, Dictionary, iTunes, Maps, and others that I can't be arsed to list, all of which have managed to get that flat look style while still being an image of their real-world counterpart.