By the way, why isn't OpenSocial, OpenID, etc. getting traction outside the tech community?
Regarding OpenID, you sometimes have to enter a "URL" as your username. Absolutely bonkers.
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EDIT: You know there's a problem when you need a giant how-to to login to your service: http://openid.net/get-an-openid/start-using-your-openid/
Don't get me wrong, the idea behind OpenID is awesome. Its implementation is not user-friendly, however.
OpenID because it's a non-solution to a non-problem, and OpenSocial because Google didn't provide developers with the primary benefit of the Facebook Platform (distribution).
Plus the social networks that implemented it were lame and didn't monetize well. OTOH, Playdom gor their start on MySpace.
http://techcrunch.com/2010/07/27/playdom-acquired-by-disney-...
If Google built a "game center" and let people send invites through gchat, we might be talking.