This just got updated on the Tresaury Board Secretariat's page:
"Since January 31, 2012, all departments and agencies have been proactively posting
the summaries of completed access to information requests. **By June 30, 2012, all Crown
Corporations and Shared Governance Corporations will also be posting this information**"
http://open.gc.ca/open-ouvert/ati-aai-eng.asp