deploying: see docs and on jboss AS 5 (not sure about 4) you can put a .par file in the deploy directory afaik (not tried it yet)
- Identity component: wait a little more
- .xhtml in GWT: Not supported (not sure if that should be followed by 'yet' or not.
So their is no way to deploy it directly from GPD jpdl designer(eclipse) in jbpm 4 and so what about task forms which are needed with the process definitions?
one example needs to explain about the flow of jbpm4...identity cimponent also imp but its okiee(like websale exapmle with jbpm3.2)
taskforms in jBPM 4 will be different. Look at posts in the dev forum by Heiko Braun about this. There is a change from jsf (.xhtml) to freemarker templates.