Green Ronin has announced that its True20 system, already an OGLv1 product but subject to licensing fees for logos and branding language, will be getting a new license in ’08 (to go with a slightly revised new edition of the core rules) that frees the logo somehow. No details have been released on the new terms but I’d wager they will be D20 System Trademark License-ish. The differences will, of course, be telling, and probably more charged than usual given the recent D&D4 announcements.
Fred Hicks of Evil Hat would also like to remind you that the Spirit of the Century SRD is totally OGLv1, and while they don’t allow free use of the SOTC brand (but do make deals for it), the FATE brand is as free as it’s ever been. I repeat this here because so many D20-tied campaigns and settings are crying out for some FATE love in my opinion. (*cough*Iron Kingdoms*cough*)