In 2005, on Google’s sprawling, college-like campus, the most secret and ambitious of many, many teams was Google’s own smartphone effort—the Android project. Tucked in a first-floor corner of Google’s Building 44, surrounded by Google ad reps, its four dozen engineers thought that they were on track to deliver a revolutionary device that would change the mobile phone industry forever. By January 2007, they’d all worked sixty-to-eighty-hour weeks for fifteen months—some for more than two years—writing and testing code, negotiating software licenses, and flying all over the world to find the right parts, suppliers, and manufacturers. They had been working with prototypes for six months and had planned a launch by the end of the year . . . until Jobs took the stage to unveil the iPhone. Chris DeSalvo’s reaction to the iPhone was immediate and visceral.