The existence of Longhorn was first revealed by Windows product manager Tom Laemmel, who I first met July 17, 2001 during an XP press tour. Laemmel spilled the beans to eWeek a few days later, and Microsoft executive vice president Jim Allchin verified that a new interim release, Longhorn, would ship before Blackcomb. Since then, information about Longhorn has appeared in Microsoft and Department of Justice (DOJ) legal filings related to the Microsoft antitrust case. And starting in summer 2004, Microsoft began detailing its Windows product roadmap. The current plan calls for Longhorn to be followed by Longhorn Server a year later, a Longhorn Server R2 release two years after that, and the Blackcomb release in 2011. Under the terms of the new schedule, Longhorn, Longhorn Server, and Blackcomb will all be major releases. You can find out more about this schedule--and these products--in my interview with Bob Muglia.