As we celebrate the 15th anniversary of the first customer shipment, on 29 June 2007, of the revolutionary Apple iPhone, the most transformative & successful product in history, we are reminded yet again of the extraordinary power of Design Thinking. This product has done more to enable the digital age than any ever designed. Apple has sold over 2.2 billion iPhones to date. No digital product comes anywhere close. Not within 3 orders of magnitude.