Why no MVC 4 project template in Visual Studio 2010 when MVC 4 & tools are installed?

When I create a new web project in Visual Studio 2010, I don't see an option for a MVC 4 web project. I have MVC 4 (preview) and VS2010 MVC 4 tools installed. I see 开发者_如何转开发ones for MVC2 & MVC3.

You can't create an MVC 4 web site nor a .Net 3.5 Web Application.

You can go

File -> New -> Project -> Select .Net Framework 4 -> ASP.NET MVC 4 Web Application

This Update Link will download the setup for ASP.NET MVC 4 for VS 2010 SP1.