I believe for alpha an email is required for invitationals.

For beta there are some considerations that may require waiting for alpha approvals.

Besides that, and not a gimmick, soon as.

I was just playing with iris, primal, snort on my ipad browser but didn't see any PWA UX .

Now i will investigate more on this side, maybe there's better to do ?

Meaning the tech (PWAs) aren't developed enough to support Nostr yet? Or that Nostr isn't in the right place to succeed as a PWA?

Try Plebstr pwa, it’s brand new and works great !