Opening Dovetail.Agent.Mobile.sln using Visual Studio 2008 throws an error:

One or more projects in the solution could not be loaded for the following reason(s):

The application for the project is not installed.

These projects will be labeled as unavailable in Solution Explorer. Expand the project node to show the reason the project could not be loaded.

Dovetail Mobile Agent requires the ASP.NET MVC Beta to be installed.

The ASP.NET MVC Beta release provides a new Model-View-Controller (MVC) framework on top of the existing ASP.NET 3.5 runtime.

Download  ASP.NET MVC Beta from here:
http://www.microsoft.com/downloads/details.aspx?FamilyId=A24D1E00-CD35-4F66-BAA0-2362BDDE0766&displaylang=en

• Dovetail Mobile Agent – Dovetail Agent for Mobile Platforms