|I played with Creator 2 applications on JBoss. So far I was partially successful. See the JBoss wiki for more information.
The good news is that it seems to work just fine as long as you don’t have any other applications which want to use the bundled MyFaces libraries;-)
The not so good news is that the JBoss Portal seems to be an application which uses MyFaces. That means I don’t currently know how to make that coexist with Creator applications:-(