I was wondering what had happened to the ASP.NET Dynamic Data Wizard when downloading the latest release of ASP.NET Dynamic Data in Visual Studio 2008 SP1 Beta in the following tutorial:
Turns out that perhaps the ASP.NET Dynamic Data Wizard will only be made available via its home on the MSDN Code Gallery, because there is a new refresh of the Wizard that you can download specifically for Visual Studio 2008 SP1 here. Note this wizard does not come with Visual Studio 2008 SP1 so you need to download it separately.
Once you install the new ASP.NET Dynamic Data Preview from Code Gallery you get the option of the Dynamic Data Wizard when creating a new website:

A special note, however, is that I was thinking the wizard would allow us to choose either LINQ To SQL or the ADO.NET Entity Framework for my datasource, but it still apparently just chooses LINQ To SQL at the moment. I am sure they will be getting the ASP.NET Dynamic Data Wizard to allow us the choice between the LinqDataSource and EntityDataSource in the near future.

The ASP.NET Dynamic Data Wizard is pretty cool when you have a lot of customizations to be made with your ASP.NET Dynamic Data Pages.
Hope this helps,
David Hayden