Zero Interface- Physical internet connected devices that do not have screens with hidden feedback. Mixed Reality can provide a useful UI that allows users to interface directly or see info from the device. Smart car keys can provide vehicle utility inputs, traffic lights show time to light change, and smart outlets show real-time charging status.
Extended Interface- Devices that smaller physical screens are limited to interface constraints. MR can be used to extend a larger virtual screen space for information and content. In a sense, MR will not go straight to eliminating screens but instead provoke new responsive inputs for an enhanced user interface.