I don't think that Google Glass strictly needs to be considered body-interfacing to the degree that it's failure presents real hazards to the person, but what i

I don't think that Google Glass strictly needs to be considered body-interfacing to the degree that it's failure presents real hazards to the person, but what it does allow us to trivially bring a screen with data into not just day to day lives, but literally everything. I think right now lots of people are trying to boil the ocean and try to make AR truly part of our bodies, when really there's a huge amount of low hanging fruit in simply getting information to be ever-present and available. Flicking your eyes up is a good first step. Later, overlaying the same information into our field of view. Later still, integration of that data into the body, rather than just presentation of it to the physical senses.