>Hi,
>Can you mix ASP.NET web forms into ASP.NET MVC application? For example, I have a login form from another ASP.NET Web forms application. So in the new ASP.NET MVC I would like to use the existing Web form (by copying it). How do you route the application to the ASP.NET web form in MVC application? Any other suggestions would be appreciated.

This probably won't help now, but just this week I saw a preview of VS2013.
It has tools that integrate ASP.NET, MVC, and Web API a lot more seamlessly.