Caldera also supported Alan Cox in his work on SMP. If Linux displaced Unix on the Intel x86 platform, then Sun Microsystems wouldn't have a low-end Unix path. This point becomes more interesting in light of SCO's litigation eight years later against IBM in 2003. That is, IBM was not the company involved in the SMP work, and moreover, the company most directly involved is the company that later became the SCO Group, essentially SCO suing IBM for work it itself did.