Mostly I'd use it to "take notes" when I need a quick shot, rather than taking out my phone camera. I can't tell you how many times I've been sketching a proof on a whiteboard and then had to take a phone photo for later reference, and it's just one of those minor inconveniences I imagined I wouldn't have to deal with in the year 2525.
(And yes, I acknowledge that smart glasses are a privacy nightmare and there's any number of negative social externalities)
Grim meathook future, as jwz says.
Removing the 'negative' from a person's life and allowing them to exist perpetually is, I believe, required to avoid the current selfish race to the bottom of hoarding resources and capital.
It's like saying that Apple didn't learn anything from Palm when they launched iPhone.
There are dozens of manufacturers building smartphones with camera modules reasonably close to the required form factor. No one yet has figured out the ultra-low-power video recording or ultra-high-power-density battery construction required to put these cameras into a glasses format, but when that does come true I don't see any reason why it will be exclusive to the first one to succeed.
Sure, Facebook does seem to have a stranglehold in some domains due to their network effects and first-mover advantage, but why would that be the case for hardware?
(and i guess even those that do know history sometimes...)
I think being recorded by possibly every person passing by is extremely discomforting.
Wouldn't catch me dead in a pair of these.
