If you can use the mobile's back camera like Structure Sensor does, it could even choose between VR and AR based on the app :) Also if you later can use Google

If you can use the mobile's back camera like Structure Sensor does, it could even choose between VR and AR based on the app :) Also if you later can use Google Tango with it, you'd even have both depth + color feeds for AR, not just color, which helps realism when you add 3D elements in it, or even simply to sneak parts of the real world into VR (like in youtu.be/fEiyzJDFiJI). Natural interactions, realistic rendering, latency (and battery life :) are definitely the next big battlefields.