- Positional tracking, being able to move around in your environment rather than just move your head (will be solved eventually on mobile, see inside-out positi

- Positional tracking, being able to move around in your environment rather than just move your head (will be solved eventually on mobile, see inside-out positional tracking) - Custom made screens for VR, Rift/Vive have 90hz refresh rates, I believe Daydream phones will be 60hz (same as GearVR)