I note from http://www.jboss.org/wiki/Wiki.jsp?page=VirtualHosts (bottom of page), that it is possible to define multiple <virtual-host>s for which a WAR should be deployed. (Aside - anyone doing this pre JBoss 3.2.4/Tomcat 5.x?).
Anyway, http://www.jboss.org/j2ee/dtd/jboss-web_3_2.dtd defines ELEMENT jboss-web ... virtual-host?, so I am wondering if the DTD should be updated for 3.2.4 (it still appears to have the above definition), to allow virtual-host*.