[toast0]

Google glass was a display that was up and to the right of where you want to be looking.

I don't know about everyone, but I found it pretty hard to use. Caveat, I didn't get them fit to me, I was supervising an intern working on a speculative Glass project, and they were fit to him.

AR would be neat, but voice interfaces are acheivable at an approachable cost. I'm not one to talk to a computer, and I wear prescription lenses, so these glasses don't appeal to me, but I can see there's a market there, not sure how big or if Meta can capture it.

[demosthanos]

Right, I'm not claiming Glass was good, but it at least attempted to use the glasses form factor for something.

[toast0]

The camera to capture 'what you see' seems like using the form factor pretty well.

Mic and speakers, too.

Glass attempted a display, but IMHO, it was unusable, so I understand why you would try the same thing with no display. Or the same thing, but mounted on your wrist (Google Wear).