Thurrott makes a "guess" that Yukon will ship with Longhorn in 2006. I don't think he understands what Yukon is if he really believes that. Yukon is the next version of SQL Server, not the Starship Enterprise. It has been "demoware" for a long time now. It isn't likely that the product will be shipped within the next 12 months, but it certainly won't be over 40 months either.