How about swipe/scroll support for pages (not shown in videos)?
I’ve found a swipe-only example in the ninja project, however this is different than what iOS offers out of the box with UIScrollView.
With UIScrollView you can browse “pages” using a combination of swipe and drag gestures (like browsing photos). This is different from handling a basic swipe only gesture, and also involves variable easing.
This is a fundamental mobile UX idiom I would say -