President and CEO, AT&T Mobility
When I first saw the iPhone, even though it wasn't in its final state, I was blown away by what Steve had been able to put into that device.
He'd found a way to squeeze the Mac OS X operating system into a handheld device. That's when the light bulb went off for me -- this device was going to change the industry forever. And it has. It's made the U.S. the epicenter of smartphone development. -- Interview by Stephanie N. Mehta NEXT: Jimmy Iovine