I've been thinking a little bit today about how to display maps in virtual reality. Greenpeace's use of a map superimposed on top of a 360 degree panoramic video in Gestrandete Wale points to how maps can be superimposed on top of a cube map in a VR scene.
Another method might be to place a map on the 'ground' in a 360 degree panorama. In other words a user interaction of looking down in a VR