The complete PDC09 Day Two Keynote, featuring Steven Sinofsky, Scott Guthrie and Kurt DelBene.

Scott Guthrie, corporate vice president, .NET Developer Platform, announces Silverlight 4.

Scott Guthrie, corporate vice president of the Developer Division, and Bill Buxton, principal researcher of Microsoft Research, in the MIX09 Day 1 Keynote.

Take a behind-the-scenes look at just what goes into Scott Guthrie’s preparation for his MIX09 keynote. We reveal the rituals and habits that get "The Gu" ready to deliver his one-of-a-kind address, and answer the burning question: Will he wear his red polo this year?

Scott Guthrie, corporate vice president of the Developer Division, and Jeff Atwood, StackOverflow.com, answer audience questions via Twitter about Silverlight 3 after the MIX09 Day 1 Keynote.

Scott Guthrie, corporate vice president of the Developer Division discusses the significant changes and improvements in Silverlight 3 in this Microsoft Channel 9 video.

Joe Stegman, group program manager of the Silverlight runtime team, provides an overview of the new features in Silverlight 3.

Brad Abrams, product unit manager on the Application Framework team, demonstrates the simplicity of building end-to-end data-intensive Silverlight applications with the new features in Silverlight 3 and .NET RIA Services.

Christian Schormann, director of program management, demonstrates the ease of use from concept to product with new features in Expression Blend 3.

Steve Guttman and Erik Saltwell demonstrate the newest features in Microsoft Expression Web 3.

Unni Ravindranathan takes viewers on a tour of the new Expression Blend 3 Preview released at MIX09 in March.