It's been 15 years since Apple released its first ever , the device that redefined the mobile phone and helped make Apple one of the most valuable companies in the world. Apple's original iPhone model sold a whopping 2.2 billion units after just a year of sales, and now, 15 years later, the Cupertino firm is developing one of its numerous successors, the iPhone 14.In 15 years, the iPhone has gone from to...
