Craig Main <CraigM(a)afa.co.za&gt; writes: For what it's worth, Stallman says he needs them to be able to defend the GPL in court. That argument comes from the now-legendary legal advice that the FSF allegedly received a long time ago and that created the basis for the whole assignment mess. There are people who dispute the validity of the claim ("advice"), but the point is moot, as none of it has been tested in a court of law. Eh, if only it were that simple! FSF's Emacs is also X-aware. Thanks.