I've been thinking about adding this to the app I'm working on, as a sort of UI hint. Just something real subtle at each edge that is scrollable, to signal the

I've been thinking about adding this to the app I'm working on, as a sort of UI hint. Just something real subtle at each edge that is scrollable, to signal the user that they can scroll in that direction (maybe a transparent animated chevron or something). It definitely does feel like something the browser should handle though. Having to work on stuff like that instead of actual functionality is painful, especially for startups that are trying to iterate fast.