The other day I was scrolling through my contacts in my iPhone when I noticed the animation for transitioning between one letter and the next. The letter separator docks at the top of the screen, becomes translucent and then the first contact starts scrolling underneath it. It fascinated and amazed me.
I think it's part of what made the iPhone so amazing and revolutionary, everything was looked at, everything thought about. And every now and then you notice something like the phonebook scroll which is delightful.