JBoss AS 6.0 M1 does *not* have EJB3.1. EJB3.1 is currently work in progress and we'll post in this forum once it's available for use against AS-6. Our release process allows us to release EJB3.x components outside a AS release.
And what is the stage of ejb 3.1 project? is there any release date scheduled?
We don't have an exact date right now. But we will be releasing EJB3.1 components after 6.0 M1 has been officially released. So tentatively, you can expect it to be some weeks after AS 6.0 M1.