What do you mean "what happened?" They just debuted the latest model last week.

Well most of them have failed. But Facebook just released a new model.

I believe OP meant project I-XRAY by Nguyen and Ardayfio as covered in e.g. https://www.404media.co/someone-put-facial-recognition-tech-onto-metas-smart-glasses-to-instantly-dox-strangers/ or https://lil.law.harvard.edu/events/i-xray-lunch/

AFAICT they are working on Halo Nova https://www.halo.so/ which does not look like FLOSS or OSHW.

privacy nightmare

If lots of random civilians are wearing them and training them on ICE/police/fascism then the privacy nightmare might run both ways. There are a lot fewer masked enforcers than civilians. And a lot more stochastic violence in the air.

Not sure if that’s even possible. Even a GoPro barely lasts about 2-3 hours while running no AI and having a bigger battery than whatever you can fit in glasses.

I think you mean these but i dont know where they are now.

We are already living in a privacy nightmare. Whether you film and then doxx folks with a smartphone, a camera you've hidden in your clothing, or one built into the frame of some spectacles really doesn't move the needle much any more. We're in the red already. The nightmarish data collection and then sharing is already baked into our internet experience.

And the people at large sit in a chair in a burning room that is this nightmare we're in, uttering "It's fine." It's been years since the Google glasshole debacle. People are so used now to other people just filming shit all the time. I think these glasses will end up just being tolerated. There won't be thousands around in your daily life, like smartphones. Society will acquiesce even in occasional perverts and intentional doxxers. The digital Overton window will move on.

What I can foresee is a more enforced no filming ban in certain areas, like restrooms and changing rooms. There could even be a technical solution that garbles recordings whether they are attempted or not.