Mandrake and the commercial license

[Jan Wildeboer]

Can Mandrake really do this?

http://www.mandrakesoft.com/products/mnf/license

According to my source

http://www.heise.de/newsticker/data/anw-17.12.02-000/

they say that owners of the commercial license are not bound by the 
GNU/GPL anymore. They can change the sources and are not forced to make 
the sources available.

How is this possible with GNU/Linux?

Jan Wildeboer