Although it may be a bit late for the show, I believe the ASP.net team would like people to start using the MVC Music Store as an official example of the mvc link. The Music Store application uses the Razor viewer with the first Entity Framework code approach (also demonstrates the database first), as well as examples of dependency injection, test-based development, jQuery integration, and the receipt and use of NuGet packages.
The second reference example seems to be more on the cutting edge of things and is provided by people with patterns and practices. This is called the Silk Project and uses the latest web standards such as HTML5, CSS3 and ECMAScript 5, as well as modern web technologies such as jQuery, Internet Explorer 9 and ASP.NET MVC3.
These together are likely to show you the latest ASP.net MVC developments along with some pretty neat ideas and examples.
Chris
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