Dvorak: Killing Linux - Opinions from PC Magazine "IBM thinks anything anyone has done in recent memory is traceable to something it did in the 1950s or 1960s. This is particularly true of computer algorithms. The company feels that it can always defend against suits like SCO's by rolling out endless prior art. But the lead attorney, David Boies, was the attorney for IBM in its antitrust defense years ago. Boies knows things we don't. SCO retained his new firm when the company felt IBM was pushing AIX code into Linux. The AIX code is attached to a Unix license from SCO."
Skim the entire column; he has some good points to consider.