J2EE 5.0 is not final yet and expected to be finalized towards end of this year or first quarter of 2006. However some specifications under J2EE 5.0 are well under way and have gained a lot of attentions. Want to get jumpstart on these technologies? Oracle has launched two resource centers for two of these technologies namely JSF and EJB 3.0.
http://otn.oracle.com/ejb3 - EJB 3.0 Resources
http://otn.oracle.com/jsf - JSF Resources
These resource centers contain introductory to advanced articles, how-to samples, documentation, software to run these samples, etc.