We upgraded a medium LOB-app to MVC3/Spring.Net and retained the analytics part written in Asp.Net WebForms (Telerik controls, reporting services), so it is possible.
Imho I did not use the MVC3 support facilities brought with Spring.Net and instead wrote a new one. At that time MVC3 was quite new the documentation that ultimately helped was:
http://bradwilson.typepad.com/blog/2010/10/service-location-pt5-idependencyresolver.html
According to Brad, to implement a dependency resolver for MVC, you will need to implement this interface:
public interface IDependencyResolver {
object GetService(Type serviceType);
IEnumerable<object> GetServices(Type serviceType);
}
http://msdn.microsoft.com/en-us/library/system.web.mvc.idependencyresolver.aspx