Microsoft Silverlight developers and designers have a reason to rejoice! Silverlight 3 has been released (RTW) and here are some important links:
Silverlight 3 Runtime – Version is Silverlight 3 RTW (3.0.40624.0)
Silverlight 3 SDK - provides libraries and tools for developing Silverlight applications
Silverlight 3 Tools for Visual Studio 2008 SP1- Add-on for Visual Studio 2008 SP1 for developing Silverlight 3 applications
Microsoft Expression Blend 3 + SketchFlow RC - Create Windows Presentation Foundation (WPF) applications for the desktop and Microsoft Silverlight 3 applications for the web
Deep Zoom Composer - Prepare images for use with the Deep Zoom feature in Silverlight 3
Ironically there has been no official announcement about the release yet as of this writing, however the download links are active !
Update: To find out more on the new features of Silverlight 3 and Blend 3, check ScottGu's post over here