- Go to Help > Install New Software
- Set Work with to http://download.jboss.org/jbosstools/updates/development/
- In the results, unfold “All JBoss Tools” and check JBoss AS Tools. When last I checked the description indicates only 4.x and 5.x for JBoss, but it does include JBoss AS 6 Tools
- Next, etc, Finish.
When I then ran through the Eclipse add server wizard the 6.0 version of JBoss AS was available.