It would be nice if there was a "Are you sure?" prompt when closing the app.
It happens quite often to me that I swipe back twice and it closes the entire app, losing all my scrolling progress.
I was thinking on this one. What if, and I'm really just throwing this at the wall, what if when you went back too far instead of the app closing it went up a parent level. So it doesn't back up, it backs out.