What piece of information is out there that's better than speculation or what "some guy on the Internet" said.
That "guy on the Internet" would be Corning Glass CEO Wendell Weeks himself, as he is quoted in the Walter Isaacson biography of Steve Jobs.
We dont have the capacity, Weeks replied. None of our plants make the glass now. Dont be afraid, Jobs replied. This stunned Weeks, who was good-humored and confident but not used to Jobss reality distortion field. He tried to explain that a false sense of confidence would not overcome engineering challenges, but that was a premise that Jobs had repeatedly shown he didnt accept. He stared at Weeks unblinking. Yes, you can do it, he said. Get your mind around it. You can do it.
Weeks retold this story, he shook his head in astonishment. We did it in under six months, he said. We produced a glass that had never been made. Cornings facility in Harrisburg, Kentucky, which had been making LCD displays, was converted almost overnight to make gorilla glass full-time. We put our best scientists and engineers on it, and we just made it work. In his airy office, Weeks has just one framed memento on display. Its a message Jobs sent the day the iPhone came out: We couldnt have done it without you.