Hadn't heard of these before and looked it up. An interesting product, I wonder if it's likely to be more successful than Google Glasses that crashed and burned some years ago.

Kind of a Swiss Army knife or Rube Goldberg device, it does do a little of everything. I'd be concerned about how the weight affects wearing comfort. The onboard electronics must make these considerably heavier than plain frames.

My DHbought the google glasses and I was always afraid he would be distracted and walk into a wall. Fortunately they were a short-lived inrerest.