"Seam 3 will offer hot deploy of individual beans to allow changes to made to the bean signature without restarting the whole application. This functionality is provided by reloading the class definition and then by reloading the metadata for the class and bean. The details of how this will work are pending."

http://seamframework.org/Documentation/Seam3Overview#H-HotdeployOfBeansLedByPeteMuir

Are we talking about JavaBeans only or JavaBeans and EJB components?  What about adding/removing methods in a class or the JRebel/Seam integration effort?