Your Google profile is now also an OpenId
techcrunch.com
techcrunch.com
I have spent the last two weeks implementing it at my day job and I still can't keep the names straight. OpenID is like a case study in obtuse nomenclature.
Let'se see: the first URL isn't a URL. It is an Identifier. To be specific, it is a User-Supplied Identifier. It isn't a Claimed Identifier, you see, because that would uniquely represent the user. You perform Discovery on the User-Supplied Identifier to determine what the Endpoint is to redirect the client to so that the OP can assist the user in moving from a User-Supplied Identifier or possibly an OP-Local Identifier to a Claimed Identifier.
I think I have that right. I'm not sure -- I only implemented it.
OpenID is a simple idea that was seized upon and overwhelmed by a large number of asshats who wanted to embrace and extend the concept with dopey shit like XRIs.
Unfortunately, those people have way too much influence on the written spec. This is not to denigrate anything daveman692 is doing and BradFitz did, it's the other people that I wish would fall off a cliff.