Luke Taylor and JBoss Group have released the first version of the new 'Getting Started' guide for JBoss 3.2.x.
You can download the PDF and Java source:
http://jboss.org/docs/jbossj2ee.pdf
http://www.jboss.org/docs/jbossj2ee-src.zip
There's a new forum available for discussing the guide and providing feedback:
http://www.jboss.org/index.html?module=bb&op=viewforum&f=191
Enjoy.