The report of the Calconnect.org Roundtable III and Interop is out. On the testing side, three CalDav servers and four CalDav clients were tested. The CalDav testing script was posted to help others who were not there. More on this when the results are posted.
On the technical side, the group is working on a Glossary and several surveys including: recurrence, events, and timezones. Lastly CalConnect is changing the format of the Calsify committee to work better with the recently proposed IETF Calsify Group.