Ah, right! Because you can’t videoconference with the headset on.

Thank you! Now I get it!

So it’s sort of a stopgap solution before the ar glasses are small enough to do actual video calls without looking silly?

You're thinking of a world where people would still use a computer with a webcam pointed at their face while doing video calls. For me personally, I'm seeing a world where the headset is all that we need. So no, Persona is not a stopgap solution, it's an end in itself, and in its current state it's already pretty damn good.

I can imagine for certain niche use cases it really is the killer app though. Like couples in long distance relationships, certain kinds of consultants etc.