Supplied Maven script for one or multiple portlets?

Hello, is the Maven script on the deploying page (http://portals.apache.org/pluto/v20/deploying.html) meant for just one portlet, or will it work for multiple portlets within the same WAR as well.  It's artifactId (HelloWorldPortlet) implies it should only be used for one portlet but the testsuite and pluto-portal WARs both contain multiple portlets so I'm unsure.

Thanks,
Glen