O’Reilly has just agreed to assign

…the full copyright in the book “Perl 6 and Parrot Essentials” to The Perl Foundation. The text is out-of-date, but can be updated much more rapidly than it can be rewritten from scratch.

Three cheers for O’Reilly. I wish more publishers would stop being so damn stupid when it comes to the copyright on old books that they have no intention of reprinting. Especially geek books which are frequently outdated and no-one would want them if they were reprinted (not rewritten).