Wow. JBoss guys are really moving fast (I wish I know what will come from hani on this). Bill Burke has announced the EJB 3.0 Preview Release. This project led by Gavin and Bill can be pluged in JBoss 4.0 and is based on the EJB3 spec. Hibernate3 is there taking the big share. Afaik Resin was the first one to offer something similar till this moment.