Google has been dabbling with OpenID for some time with its Blogger platform (and Brad Fitzpatrick, the creator of OpenID, is now a Google employee).
it’s not clear that any of them are in a hurry to become a “relying party” (allowing users with third party OpenIDs to log in to their sites).
Everyone, of course, wants to be an ID issuer, since they get to “own” the user. Less attractive is allowing users from other sites to log into your services, so don’t expect that functionality to come for some time.
