[OpenID] Where can I get a free i-name?

[Simon Willison]

Hi all,

A few people have tried logging to my blog using an i-name. It sort- 
of works, because I've built my implementation on top of the JanRain  
libraries which handle i-names transparently. I want to test it  
properly, but I don't want to shell out $20/year just for testing.

I understand that @somecommunity*someuser i-names can exist. Is there  
anywhere I can sign up for a free i-name by taking advantage of this?

Thanks,

Simon Willison