I think we can expose EJB3 Stateless Session Bean as WS otherwise we can simply expose POJO as WS. This depends on the requirements. If our requirements demands using of
EJB's then exposing EJB3 Stateless Session Bean as WS is fine. otherwise we will be misusing EJB, where we can acheive it using simple POJO based WS.
correct me if i am wrong.