"It may be that future ages will decide that the most important
invention of this millenium is the GPL, if it turns out to be half
as productive as the printing press was (and it might). Then again,
they may decide the plastic bag was a more important advance, or
possibly resevoir tips for condoms. But inventions can sometimes be
improved, as that last example shows, and I'd like to make a modest
suggestion for a variation of the BSD license and GPL license, that
might be quite productive.
"As is described here at everthing2, the BSD license endorses
forking, even with additional copyright limits. This includes forks
that are or become GPL, and someone should do just that. This might
add a snowball effect to a very secure and stable system..."