‘CC-0’: A new Creative Commons licence in the works

Hidden in an announcement about Public.Resource.org releasing US federal court opinions on its site (these works are not in copyright), Creative Commons and the Public.Resource.org press release mentions “CC-0″:

The cases will be marked with a new Creative Commons mark — CC-Ø — that signals that there are no copyrights or other related rights attached to the content.

This appears to be going beyond the public domain dedication in copyright to cover ‘other related rights’. No word on further details.