Since it's keeping the same width and that most apps are used in portrait mode, they just need to make sure they adapt to the longer screen. For a lot of apps,

Since it's keeping the same width and that most apps are used in portrait mode, they just need to make sure they adapt to the longer screen. For a lot of apps, it could mean doing nothing at all, since the typical app has a navigation bar at the top, which won't change, a list view which will just stretch longer and show more cells, and a tab navigation at the bottom, which won't change either. Of course, this won't work for all apps, but at least it will work for many, whereas going for 720p, will make pretty much nothing work out of the box.