[OpenID] On OpenID 2.0

[Martin Atkins]

Dick Hardt wrote:
> 
> SREG was really useful and many sites use it, but it is limited.  
> Attribute Exchange requires OpenID 2.0, and may be the driver for RPs  
> to upgrade to 2.0 once the AX spec is done and OPs upgrade.
> 

Does AX require anything else from Auth 2.0 apart from the extension 
mechanism?

If AX is indeed a "killer app", I expect that people would find a way to 
backport it to 1.1 just as they did for Yadis and XRI.