[jbpm-dev] Where to begin?

Hi Everyone, I am interested in learning jBPM and from what I read about in the community and blogs, jBPM 5 looks like a best version to start with. The architecture has changed from previous versions and I am quite happy that we now primarily support a open-standard (BPMN 2.0). This enables customers who are tied up with expensive proprietary products to move to a well-known open-source BPM product easily. However, I found that there is no significant mail exchanges in this mailing-list for the past 2-3 months. Will we be having a full-fledged, ground-breaking, (and jBoss supported), version any time this 2011? I will be very glad to see jBPM rocking on the BPM arena. Regards, Viki