Apple has sold more than one billion iPhones around the world and has become one of the wealthiest companies ever The iPhone, the device that redefined the mobile phone and has helped make Apple the most valuable company in the world, marks its tenth anniversary today. It was on 9 January 2007 that late Apple founder and chief executive Steve Jobs went on stage at the company’s Macworld event to announce the tech giant was to reveal “an iPod, a phone and an internet communicator”.