Debian, like everyone, would love a single unified license. But that's not the problem per-se. The problem is that we want all the licenses to be free by a single definition. That some of the licenses will be incompatible with each other is a problem, but not one that impacts freedom.
The problem with the GFDL from our standpoint is *not* just that most such text cannot be incorporated into a GPL'd program. As you rightly point out, that was true for the old GNU documentation licenses too. The problem about incorporation what we are concerned with is that GFDL-with-invariant-sections text cannot be incorporated into a GPL'd program: the problem is that it cannot be added into *ANY* free program whatsoever. This is *not* true for text from the old GNU documentation license. Thomas
