Steam Frame

It looks stunning, great design there

There's a devkit... I'm disappointed, that's the Sony method? I actually tried to do dev for the Meta Quest 2 the other week and was disappointed there because it's my son's, and he can't sign up for a Meta dev account (age), so there's no way for me to do anything with it without factory resetting the thing. This is more disappointing though. Why can't I dev games for the consumer headset?

Have you tried adding a second user on the headset with your own account?

It sounds like the dev kit is more of a way to get devices out to devs before the full launch, I'm sure you can develop using the consumer hardware. The Adam Savage Tested video had interviews with the Valve team and it was pretty clear that "it's your computer" was a core part of the philosophy.