On Groklaw there is a follow up to the article "International Characters' Business Model": "Larry Rosen Responds to Your Comments" http://www.groklaw.net/article.php?story=20060914192614297
Are you convinced by that response? If we apply the reasoning to the orthogonal case of copyrights, then the GPL could call itself free and open by permiting free use for r&d, non-commercial applications and use of the code so long as it is either unmodified or modifications are shared, while automatically demanding payment for use when private modifications are made and not distributed. I would not call that GPL a copyleft, I'd call it a landgrab.
--David.