CirrAS is an effort to automatically deploy clustered JBoss AS servers in the Cloud. With so much focus on cloud computing these days, keep an eye on this CirrAS project.
The CirrAS guys are currently using RHQ to monitor every JBossAS instance in the cluster and recently utilized the RHQ CLI to perform some automation steps to get some RHQ things setup. For a description of what they did, see http://cloudpress.org/2010/01/29/rhq-cli-configuring-and-importing-resources/. Eventually, the CirrAS team wants to use RHQ to manage every node in the JBossAS cluster (deploy app, restart, etc).