Addition from what I've read further down the thread, it appears that the patent is about the way Apple implemented pinch-to-zoom, not the feature of having pin

Addition from what I've read further down the thread, it appears that the patent is about the way Apple implemented pinch-to-zoom, not the feature of having pinch-to-zoom as a gesture for zooming in general. So that would be where maybe my analogy breaks down. However: Can someone maybe explain me/us what is exactly so unique and non-obvious about the way they implemented it, then? And yes I did read the patent, or at least an excerpt of it that appeared to explain roughly how any decent programmer would implement such a thing, given an hour to think it over and an OS/GUI API that is vaguely object-oriented and event-based. I did read that part. Does anyone have the non-obvious part handy? (for the pinch-to-zoom specifically, as I just want to focus on one thing, this conversation is convoluted enough as it is)