Elastica is a highly efficient and extensible, rules-based load-balancer for JBoss that adds dynamic behavior to EJB load balancing. Rules can be defined to redirect EJB requests according to request data, server performance data, or even the time of day
JBoss Seam is an application framework for Java EE 5. Seam unifies the component models of JSF and EJB 3.0, providing a streamlined programming model for web-based enterprise applications. Very interesting!