Download Eclipse Europa J2EE version and JBoss Tools 2, generate a WAR-based new Seam project and start sniffing around.
Hello World ain't what it used to be ;-)
Yes, the simple example is probably as simple as it gets. If you want asp, then use asp ;)
I'm envisioning a future version of Seam with a special syntax for hello world applications. Maybe the exclamation point? Then we could give great demos:
"Watch now as I deploy the exclamation point to the application server. Now I'll access the web page. And there it is. Hello world in one character!"
This is way beyond the scope of Seam, you should take this up with the Web Beans JSR. That would really upset the Ruby guys ;-)