When Steve Jobs bounded on stage at the Macworld Conference in San Francisco seven years ago, few in attendance could have realized the presentation they were about to see would mark the beginning of a new technological era.
"Every once in a while, a revolutionary product comes along that changes everything."
This was the standard Jobs set for Apple's newest creation. The iPhone's success would be judged, he implied, by no less a yardstick than the Macintosh — ....