Another difficulty with the GPL its somewhat sketchy
legal basis. (OT for
LAD... Google if you want to know more).
the GPL is a contract freely entered into by the copyright owner and
the licensee. if the contract is held to be invalid, there is no
contract. at that point copyright law denies everyone except the
copyright holder any rights (except fair use) regarding the copyright
work.
i suppose you could call this sketchy. or not. ymmv.
I've noticed that Dual licencing GPL/Commercial
seems to fit in with the
corporate mindset, however. (e.g. Mysql). Ardour/Libardour could go this
route if all the developers desired it.
unlikely, but not impossible.
--p