RealAudio - MP3 - iTunes

During his annual presentation at the Macworld Expo Tuesday, Steve Jobs reported that Apple has sold more than 4 million iPhones since the product's launch in the middle of 2007.

In the latest edition of Wired Magazine, contributing editor Fred Vogelstein has the inside story of the iPhone's creation. He describes Apple engineers who sometimes cracked under the pressure to get the innovative smart phones to market. And he reports on the great lengths Apple went to keep the iPhone secret - to the point where the software developers didn't know anything about the iPhone hardware, and vice versa, as it was being developed.