I hope modelling/engineering/architectural/etc software gets a hell of a lot of VR integration, that's always seemed to me the perfect application - it allows for an environment that close as possible the real thing without losing the technical tools that allow for rapid prototyping. Thinking of stuff like Autodesk Inventor, where in 2D it feels almost like you're milling physical items, with the ability to morph or clone or whatever at will. With VR, the development experience could be phenomenal.