Red Hat Announces Open Source Assurance to Safeguard Customer Investment
Program features warranty to guarantee customers the right to use
Red Hat Enterprise Linux without interruption.
...
A key feature of the Open Source Assurance Program is an Intellectual
Property Warranty. The warranty ensures, that in the event that an
infringement issue is identified in Red Hat Enterprise Linux software
code, Red Hat will replace the infringing code. Red Hat's warranty
assures customers that they can use Red Hat Enterprise Linux and related
solutions without interruption. The warranty is available for all
customers having a valid registered subscription to Red Hat Enterprise
Linux or related solutions.
...
--henry schaffer
P.S. See:
http://www.redhat.com/about/presscenter/2004/press_OS_assurance.html
Note that SCO is *not* mentioned! :-)