Microsoft announced VS 2010 Service Pack1 Beta and is ready for download. MSDN subscribers can download beta from here
General users can download from here
Service Pack 1 Beta including the following features
- Better Help viewer
check out more details on Help feature here
- Unit Testing on .NET 3.5 Now all unit tests runs under .NET FW 4
- IntelliTrace F5 for 64 bit and SharePoint projects
- Performance Wizard for SilverLight performance profiling tools now available for Silverlight development project as well
- VB Compiler Runtime switch this enables the developers to run their apps and libs with out VB runtime
Notice that ASP.NET MVC 3 RC2 is not included in the SP1 beta. You can download ASP.NET MVC 3 RC2 from here