The case initiated by SCO against IBM, making claims to the effect that they own Linux and the world, and in particular IBM, is infringing SCO's copyright took a solid step forward with IBM issuing a "Summary Judgement" in their counter claim. A full and readable precis can be read at http://www.ip-wars.net/story/2006/10/14/233634/06 but this seems like a pretty unequivocal bodyblow to SCO and its ludicrous, and Microsoft funded, claims.