We are currently working towards an IPS repository with the OpenCSW package set. What we have achieved so far is setting up the complete build environment for Solaris 11 connected to the buildfarm being able to produce packages in the SysV format for Solaris 11. The master mirror also has been equipped with a repository server which is not yet populated. The next step involves adding another backend to our buildsystem GAR to produce native IPS packages.
UPDATE: Please see http://www.opencsw.org/2015/01/no-progress-on-the-ips-repository/