Several interoperability testing events for i-cards have been sponsored by OSIS and the Burton Group, one was at the Interop at the October 2007 European Catalyst Conference in Barcelona and the most recent was at RSA 2008.
In his report on the Interop at the June 2007 Catalyst Conference in San Francisco, analyst Bob Blakley wrote: The interop event was a milestone in the maturation of user-centric identity technology.