AS5 *is* of high priority but the switch of kernel/deployers complicates things, thus the long delay. We currently target end of Q2 for the final release but if you feel brave you can try Beta4 comming out next week.
Nevertheless, most of the JEE 5 functionality is available with AS 4.2.x.
Thanks for the quick response.
Please correct me if I'm wrong, but my understanding is that DI (Dependency Injection) in Servlet Container is not available with AS 4.2.X.
Indeed, this is not available in AS 4.2.