It would certainly be a big deal to have drastically more capacity on a battery or having one that keeps its capacity for longer or is more power efficient.

From device longevity to environment, I can imagine that better battery technology could have a huge impact. I sincerely hope that every company that can is researching it and making progress.

But I get your point that nothing has come of it yet.

I‘m sure they’d be happy to put it into their other devices as well, if possible. But you can’t deny that battery on VR/AR headsets is a much bigger issue compared to smartphones. On smartphones, you mostly make it through one day, on headsets you’re happy if it lasts two hours and the Vision Pro even has the battery dangling around on a cable.