Seems that a paralegal has taken up the task of researching the SCO lawsuits, claims and FUD and documenting them on a website. I like the approach the author takes:

SCO Scoop.

When you want to know more
about the story
but don't know where to look.

IANAL.  I am a paralegal, so if you have a legal problem and want
advice, this isn't the place.  Hire an attorney instead.  Research
is, however, what paras do, so here I am sharing things I have found
in my research.

Lot's of interesting information including a link to IBM's copyright infringement counterclaim.