] The courts will decide whether that hope will ever be
] rewarded with a big payoff. If SCO loses, the company is
] likely toast. But winning will be a tall order. SCO must
] show that the old, murky contracts between AT&T (which
] developed Unix), Novell (which bought the operating
] system from AT&T in 1993), and the old Santa Cruz
] Operation deliberately transferred the Unix copyrights to
] the new SCO Group; it also must show that it owns the
] rights to derivative flavors of Unix, like IBM's AIX.
] Finally, and perhaps most difficult, SCO must prove IBM
] and other Linux programmers around the world got sloppy
] and ported proprietary code into Linux. Legal experts
] tracking the case think each hurdle - let alone all three
] - is difficult to clear. The odds are clearly against
] SCO.
A fantastic overview of SCO's business tactics since 2002. It states exact how many lawsuits SCO is in, against who, and about what.

SCO: 2002 - present