Now that the the Linux community has launched Show Us the Code, a website/movement to further air the details of purported code intellectual property violations by Linux on Microsoft, it's time to consider Microsoft's PR and legal risks by threatening or taking legal action against Linux.
Based on a survey in my recent blog on Microsoft's MP3 IP travails, the community thinks Microsoft has more to lose than to gain. I think they are right. Microsoft may win a battle or two but at the cost of a war. Microsoft must know what violations may exist. By not taking action, it wants the best of both: no legal action, all PR benefit. Not a good bet. It didn't work out for SCO from the Unix angle.