Founders Found
Ah, so, according to <a href="http://creativecommons.org/press-releases/archive/2003/04/">this press release</a>, Dr. Lessig "will release" his first two books, as well as his "next book", under the <a href="http://creativecommons.org/projects/founderscopyright/">Founders' Copyright</a> dedication. That's the semi-license that dedicates a work to the public domain in 14 or 28 years -- either the same or double the original copyright duration in the USA.
I'm not sure if the press release counts as such a dedication, or if there's some other document showing that the work has been dedicated. But, hey: free-as-in-freedom book in 2018! or 2032! Hooray!