the GPL does not cover all code in SUSE Linux. In addition, various Novell trademarks, including "SUSE," are found throughout SUSE Linux. Unauthorized copying and redistribution of SUSE Linux violates Novell's trademark rights."
This applies to SUSE 9.3. Someone more legally minded than me may know whether this is in breach of the GPL - it definitely seems add odds with the spirit of the GPL to me.