Oryx
Yesterday I noted bxModeller. Oryx is another new entrant in the on-demand, collaborative BPMN editor market. Looks very slick, but haven’t used the tool. Doesn’t appear to support XPDL and they are working on BPMN – BPEL translation.
I’m working on a BPMN training course just now and Oryx would provide a nice way to get the attendees modeling without having to take the time and trouble of loading software onto delegates PCs.