http://creativecommons.org/weblog/entry/7828
According to the CC blog, the intention of CC-Ø is that it "signals that there are no copyrights or other related rights attached to the content." ie, use it for government-PD (and maybe PD-old?) works. I am guessing http://creativecommons.org/licenses/publicdomain/ is going to be recommended where we use "PD-self".
However the problem still remains of how to pronounce this. ;) "CC urh". "CC slashed-oh." "CC empty set." "CC Close-mid front rounded vowel". Problematic indeed.
Also note http://public.resource.org/ which apparently prompted this. They have collected a bunch of US government stuff, and at Flickr have uploaded over 6,000 images from the Smithsonian that they believe are PD. http://public.resource.org/memo.2007.05.19.html (incl. links to tarball) Any comments on that? Anything new for us?
cheers, Brianna