Java EE 6 and CDI

I'm just starting learning CDI and Java EE 6 but I found this piece of code that I want to fully understand.

@Stateful
@Model
public class MemberRegistration {
   @Inject
   private EntityManager em;

   @Inject
   private Event<Member> memberEventSrc;

   private Member newMember;

   @Produces
   @Named
   public Member getNewMember() {
      return newMember;
   }
}

Then... I saw that a jsf page referenced this newMember object like this:

<h:inputText value=#{newMember.name}/>

So my question is : It doesn't matter if I put an @Named annotation inside an variable of any object, it will be accessible anyway from JSF code? Also, what's the usage of @Produces in this case, and finally is @Stateful preferred over @Stateless in Java EE 6? If that's the case why?