You can probably combine the usage of
- http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/deployers-client-spi/src/main/java/org/jboss/deployers/client/spi/DeployerClient.java
- http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/deployers-structure-spi/src/main/java/org/jboss/deployers/structure/spi/main/MainDeployerStructure.java

e.g.

Object mainDeployer = MC.getBean("MainDeployer");
DeployerClient dc = (DeployerClient)mainDeployer;
MainDeployerStructure mds = (MainDeployerStructure)mainDeployer;
for (Deployment d : dc.getTopLevel())
{
 DeploymentUnit du = mds.getDeploymentUnit(d.getName());
 // do something with du
}