The latest release is now available on the download page. It has a few bug fixes and includes the new Event Calendar module. Be aware that there is a bug in some versions of mono that affect the new Event Calendar. It may not work for you unless you are using a recent build of mono from svn. It should work for everyone once the next release of mono is available.
PostgreSQL users may see some errors running the script to create the tables. I ignored them and it worked for me. I am trying to figure out how to get rid of the errors but I'm not quite a PostgreSQL guru yet. Once I do figure it out I'll update the scripts.