Marbux has found a treasure trove of Caldera v. Microsoft documents and media reports. Actually two. One document that turned up is a Caldera press release announcing the spinning off of Lineo in July 20, 1999. It includes a quotation from then CEO Bryan Sparks that I think relates directly to SCO's claims. It got me started on a research dig.
Bryan Sparks in the late 1990s on Linux v. Unix in the Enterprise.