For consumers, navigation makes a lot of sense, especially when on foot, or on a bike. It's unsafe in many instances to use your phone, or even to wear headphon

For consumers, navigation makes a lot of sense, especially when on foot, or on a bike. It's unsafe in many instances to use your phone, or even to wear headphones for turn-by-turn instructions. AR translation of text is already awesome but cumbersome using a smartphone. This would improve it a lot. Speech-to-text for hearing impaired folks would be really nice, as well as visual indicators of loud or dangerous sounds, with directional indicators. You could imprint someone's vocal signatures or a keyword so your friends could get your attention at distance. In professional or enthusiast settings it's also quite useful to have a heads-up display for many "live" tasks. Cooking, construction, surgery, driving, sports, policing, you can even tether to a battery pack in some instances. In short, any setting when your hands are occupied but you can benefit from some sort of data feed.