We've just released a July CTP of the Windows Azure Tools for Microsoft Visual Studio! (try the direct link to the download while it propogates)

What’s New for the July 2009 CTP?

• Support for developing and deploying services containing multiple web and worker roles. A service may contain zero or more web roles and zero or more worker roles with a minimum of one role of either type.
• New project creation dialog that supports creating Cloud Services with multiple web and worker roles.
• Ability to associate any ASP.NET Web Application project in a Cloud Service solution as a Web Role
• Support for building Cloud Services from TFS Build
• Enhanced robustness and stability

Please see this post for more information.