According to the current docs
stateful webservices in JBossWS are done differently (its usage of addressing) than what is specified in the JAX-WS 2.1 spec,
the 2.1 leverages the annotation javax.xml.ws.soap.Addressing annotation (I think that is the big difference between 2.0 and 2.1)
Do you guys think that JBossWS should move towards 2.1?
The plan is to move to JAX-WS 2.1, but after the jbossws 2.0 release which focuses on JAX-WS 2.0. There isn't too many changes in 2.1, so it will be a short release cycle.