Jul 3
But that’s not what it was. It was the world’s best portable computer. Best not in the sense of being the most powerful, or the fastest, or the most-efficient to use. The thing couldn’t even do copy-and-paste. It was the best because it was always there, always on, always just a button-push away.

Gruber - The iPhone and Disruption: Five Years In

And like all computers, its going to follow Moore’s Law and the general upward curve in terms of performance and capability. Apple is continuously pushing the limits of what people (including myself) think is possible. They are the ones pushing new battery technology, and they are the ones pushing high resolution displays.