http://javanotebook.com/2007/09/28/openejb_3_and_tomcat_6.html
It has a pretty cool example that incorporates "session bean and entities (using JPA with JTA transaction type) and illustrates the use of EJB 3 annotations including: @EJB, @Stateless, @Entity, @PersistanceContext, @OneToOne, @OneToMany, @ManyToOne, @NamedQueries, @JoinColumn."
Pretty excellent. -David
