Six years later, how Apple keeps the iPhone chugging along - The Washington Post

http://www.washingtonpost.com/business/technology/six-years-later-how-apple-keeps-the-iphone-chugging-along/2013/07/25/d25f0c62-f41d-11e2-81fa-8e83b3864c36_story.html?wpisrc=nl_tech_b

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