The Day Google Had to 'Start Over' on Android - Fred Vogelstein - The Atlantic

From an excerpt of Dogfight: How Apple and Google Went to War and Started a Revolution

"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. “As a consumer I was blown away. I wanted one immediately. But as a Google engineer, I thought ‘We’re going to have to start over.’”"

The Day Google Had to 'Start Over' on Android - Fred Vogelstein - The Atlantic