When Open Source is not Free

[Daniel Robitaille]

Seen in wikipedia:

"The capitalized term "Open Source" is attached to a definition
originally created in 1998 from Debian's rewrite of the GNU definition
of "Free Software". As a result, nearly all Open Source programs are
Free Software, but there are some exceptions."
  http://en.wikipedia.org/wiki/Free_software

Does anyone knows of one of these exceptions mentioned in that quote on
Wikipedia (of an open source program that isn't a Free Software)?


-- 
Daniel Robitaille   
  Email: robitaille at ubuntu.com   Jabber: robitaille at jabberme.org