New for the May 2009 CTP:

• Support for Visual Studio 2010 Beta 1
• Update for Visual Studio 2008
• Improved integration with the Development Fabric and Storage services to improve the reliability of debug and run of Cloud Services from Visual Studio
• Enhanced robustness and stability

Release notes/Known issues are available here.
Visual Studio 2010 compatible samples are available here.
Direct download link here.
See this post for more information.

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