Well - the drag-down to refresh feature is discoverable. It's what you naturally do to "scroll up" - and when you're at the top of the list the same gesture tur

Well - the drag-down to refresh feature is discoverable. It's what you naturally do to "scroll up" - and when you're at the top of the list the same gesture turns into "refresh". It's one of the ones that don't need to be taught when I've done user testing.