Unfortunate news: “Samson”, the T. rex goes for auction in Vegas on Oct. 3, 2009. The sad details are here.
When I came back from the gobi the glossy brochure for the auction was in my in-box. It features an article by Peter Larson on the specimen. The auction also features an Edmontosaurus from Black Hills and a composite Einiosaurus from Canada Fossils.