"Software Libre and Commercial Viability"

[http://dummy.us.eu.org/robert (robert)]

Your "Limits of the Free Software Model" section of your article, you mention
cell phones as a problem.  I believe this to be a general problem (this was
discussed on gnu.misc.discuss) of the "open source" model -- servers.
With the server model, a piece of software can remain closed indefinitely;
modifications made even to a GPL-ed piece of software that happens to be a
server would not have to be redistributed because they could be considered
"personal modifications", even if they may be serving a large public.  It
is unfortunate that the current GPL does not cover this and am hoping someone
will come up with a SGPL, a "Server GNU Public License".