[mirsadm]

There isn't anything particularly intuitive about the pinch to zoom gesture. Most of us already knew about it because we saw the iPhone keynote when it was originally released. I still meet people that own new-ish iPhones (4/4S etc) that aren't aware you can actually zoom in/out in the Maps/Photo etc apps.

[afterburner]

People keep saying it's not intuitive, but stretching something by the exact distance you pull your two fingers apart seems pretty intuitive to me. It is a new gesture so it wouldn't have occurred to me to do it the first time, but that doesn't mean it's not intuitive. Something that's not intuitive would be a gesture that doesn't seem obvious even after you demonstrate it.