SCO Linux lawsuit bizarreness

Recently SCO launched a lawsuit alleging that Linux contained SCO UNIX source code, illegally copied. SCO is pointing fingers at IBM, suggesting that hackers working on AIX lifted code and added it to Linux. In addition, SCO has written to 1,500 companies telling them they might be next if they don’t stop using Linux. The bizarre thing about the lawsuit is that SCO themselves are Linux vendors. For years they have been shipping Caldera OpenLinux, which contains a number of modifications to the standard Linux kernel.