Most of us realize that, for now, the unique YOUM display on the Samsung Galaxy Note Edge is mostly just a marketing gimmick. Despite this, there are actually a few ways in which a user can benefit from the oddly shaped extra screen real estate.
Samsung wanted to make sure we were aware of these reasons, so they created a clever infographic to share them. It turns out that those "edges" of the Edge are reserved space of their own and are meant to do some specific things. The above pic is just the beginning of the infographic. The full image can be found in the thread below detailing all of the "reasons" we might want to use the unique new device from Sammy.
Source: Samsung