CC0 falls back to a license in the absence of the public domain, so it's much stronger than a simple dedication IMO. See OSI's comments on why it hasn't been a

CC0 falls back to a license in the absence of the public domain, so it's much stronger than a simple dedication IMO. See OSI's comments on why it hasn't been approved here - http://opensource.org/faq#cc-zero http://opensource.org/faq#cc-zero