Long story - here's the short version:
There is a company called SCO that claims it owns unix and that IBM has violated some contracts by putting unix code in linux. Both of these claims are disputed. IBM looks like it is going to claim that SCO's baseless lawsuits are meant to hinder IBM's business and are secretly being financed by IBM's major competitors, MS and Sun.
Nick, any insights?
To call MS a "competitor" of IBM is pure nonsense.