Microsoft® Visual Studio® LightSwitch™ Beta 2 gives you a simpler and faster way to create professional-quality business applications for the desktop, the web, and the cloud. Beta 2 includes performance updates, improved publishing to Windows Azure and SQL Azure and support for custom data source queries.
Link – http://www.microsoft.com/downloads/en/details.aspx?FamilyID=cff6c4ef-a29a-4c82-9a59-8a3bbb65ec3d
