A screencast showing Riftsaw and JBoss Tools BPEL Modeling in action has just made it into the JBoss Tools Movies. The video shows how to create, assemble, deploy and test a simple BPEL process. In fact it shows how to create an existing sample which is shipped with Riftsaw - the say_hello process.
This process is a modification of a well-known Hello World sample type. User sends his name to the process and gets a "personalized" greeting back. So the BPEL would concat a name, e.g. Dolly with a string Hello and would reply with "Hello Dolly".
You can watch the screen cast at the JBoss Tools Movies.