Ok, cool.  I have a functional build.xml for my Seam 2.1.1.GA EAR project so now I can do hot deployment of facelets via an explode target similar to what we have in seam-gen.  Thanks!

Here are the targets of interest:

<target name="explode" depends="clean, package, unzip">
          <mkdir dir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear" />
          <copy todir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear">
               <fileset dir="${artifact.dir}" />
          </copy>
          <echo message="The app can be accessed at ${final.url}" />
     </target>
     
     <target name="explodeonly">
          <copy todir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear/${war.app.name}.war/restricted/billing">
               <fileset refid="war.billing.view" />               
          </copy>
          <copy todir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear/${war.app.name}.war/restricted/merchant">
               <fileset refid="war.merchant.view" />               
          </copy>
          <copy todir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear/${war.app.name}.war/restricted/assessment">
               <fileset refid="war.assessment.view" />               
          </copy>
          <echo message="The app can be accessed at ${final.url}" />
     </target>

<target name="unzip">
          <echo message="Base directory is ${basedir}" />     
          <mkdir dir="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\temp"/>
          <unzip src="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\${war.app.name}.war" dest="${basedir}\temp"/>
          <delete file="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\${war.app.name}.war"/>
          <mkdir dir="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\${war.app.name}.war"/>
          <copy todir="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\${war.app.name}.war">
               <fileset dir="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\temp" />
          </copy>
          <delete dir="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\temp"/>
     </target>
     
     <target name="package">
          <maven target="install" basedir="${basedir}">
               <arg line="-f ${pom.file}" />
          </maven>
     </target>

     <target name="clean">
          <echo message="Deleting ${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\temp directory"/>
          <delete dir="${basedir}\com.echo.cis.gui.ear\target\${ear.app.name}\temp"/>
          <maven target="clean" basedir="${basedir}">
           <arg line="-f ${pom.file}" />
          </maven>
     </target>

<target name="unexplode" description="Undeploy the exploded archive">
          <delete failonerror="no">
               <fileset dir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear">
                    <exclude name="**/*.jar" />
               </fileset>
          </delete>               
          <delete dir="${jboss.home}/server/${jboss.profile}/deploy/${ear.app.name}.ear" failonerror="no" />          
     </target>

<macrodef name="maven">
          <attribute name="target" />
          <attribute name="basedir" />
          <element name="args" implicit="true" optional="true" />
          <sequential>
               <java classname="org.codehaus.classworlds.Launcher" fork="true" dir="@{basedir}" failonerror="true">
                    <classpath>
                         <fileset dir="${maven.dir}/boot">
                              <include name="*.jar" />
                         </fileset>
                         <fileset dir="${maven.dir}/bin">
                              <include name="*.*" />
                         </fileset>
                    </classpath>
                    <sysproperty key="classworlds.conf" value="${maven.dir}/bin/m2.conf" />
                    <sysproperty key="maven.home" value="${maven.dir}" />
                    <args />
                    <arg line="@{target}" />
               </java>
          </sequential>
     </macrodef>