Subject: Re: JBoss aquired by Red Hat
From: Richard Stallman <rms@gnu.org>
Date: Sun, 30 Apr 2006 16:54:00 -0400

    That makes no nevermind for this analysis.  Innocent third parties can 
    receive
    distributions of the modified program, be notified by the Trade Secret 
    "owner",
    and lose their GPLed rights -- all without anyone breaking any promise.

That is true in general.  If you are an employee of a company,
and you put a GPL notice on some software the company did not intend
to release, and you post that, people get a program which says it
was released under the GPL but legally never was.

The details of the GPL are irrelevant here--it would be the same
if you used the Revised BSD license.