[Navarr]

I have always thought that OpenID would be wildly more successful if:

1. User puts in their email address

2. Website does a lookup on DNS for the email to find an OpenID endpoint (via SRV or TXT or whatever else)

3. If OpenID connector is found, user gets redirected to authenticate

4. If not, generic create account method.

[icebraining]

I think that's essentially Persona, except they do some extra work to avoid informing the Authentication endpoint about the sites you're logging in to.

[artlogic]

Exactly - that's why I say that the "enter a URL" issue seems like a minor update, not a glaring technical issue.