Adam D. Ruppe wrote: > I can't take your GPL program and arbitrarily change the license to > proprietary, and similarly (I assume) he can't take his proprietary > license and change it to GPL.
Without following the rest of the conversation: Yes, the copyright owner can release his work under more than one license, including both open and closed licenses. GPL + proprietary is fine. Qt does it, for example. -- Michiel Helvensteijn
