Maybe it's time to use blekko?

Congratulations! (I realize I'm late here, but I'm reading through the blog archives so everything feels new)

I have some issues with OpenID. If a provider goes down, is hacked or changes their format, you're sunk, not just one one site, but on every site you used. Users are unfamiliar with the concept, they might forget which provider they used to login in with at one time and login with a different provider the next time. The site has no way of connecting the identities. Using your drivers license metaphor: I don't want every blog I comment on to know my weight, address, or even my full name, I want a way to control who gets what information. I agree that this single credential idea is good and has a lot of potential, but I am wary of evangelizing it to the world before it is ready. If people use it and dislike it, it could crush this idea forever. It's like nuclear power, the accidents that occurred in its infancy set adoption of the technology back by decades. Wait until you get something that's idiot proof, then I'll evangelize it.

Google Wave is a good example of a poorly executed good idea.