No porn? You gotta be kidding me, thats like 1 5th of the internet 😀.
I already said it in the past, i dont think these will even make it to the street. I know that if I had a bussiness (any type) i would bann them automaticly from my offices. And im sure mot will.
Maybe McDonalds wont. But in general im sure these will vanish very fast. There is a potential catastrophy in every move. Example, you walk around with those on your head and a nice girl passes by with his boyfriend, you subconsiusly look at her ass, and BAM, 2 teeth less and no more google glass.
Thats 1 out of probably 150 daily situations we can name.