[OpenID] OpenID - Service Discovery?

[SitG Admin]

>A very simple example would be if a user logged in to a site that would
>like to know the exact location of a user.  There could be many
>providers of this information, so the site queries for the user's

If the user is browsing with Firefox, ask Google for "geo.ip"?

>What are your thoughts?  Is this in-line with the goals of OpenID?  Is
>there anything else you would recommend investigating?

OAuth, because it might be handling authentication once you use 
OpenID to discover the service provider (OAuth would let the user 
approve your access to that information, but not let just anyone see 
where they were).

-Shade