OpenID is a good idea; you log on once and once you are logged on, you are authenticated against your active credentials. The idea is simple and it makes the password hell manageable.
Passwords are a pain because there are too many places where you have to maintain them. When the Wikimedia Foundation introduced Single User Logon, it was great because it replaced 435 websites where I had a password with only one password.
I want to reduce the number of places where I have to enter a password because this provides me with more control over my profile and my security. I would prefer it if I could use my banks strong authentication to authenticate to my OpenID.
The problem is I cannot. I love it when the BBC writes: "Easy login plans gather pace" but for me the reality is different. I do not care that Yahoo, Paypal, IBM, Google are a supplier of OpenID, I want them to accept my credentials when I log on to their website(s).
Support of OpenID means first and foremost that you ACCEPT authentication. What I want is OpenID everywhere including Wikipedia because otherwise it is just a distraction.