...I for one am interested in seeing OmniGraffle support this open standard for semantic representation of state machines. I'd envision "support" entailing:
- Importing SCXML files and laying them out (similar to DOT), and
- Exporting SCXML files in a lossy manner (without layout or presentation information), making certain assumptions (e.g. the first label on an edge is the transition event list, the second label, if any, is a condition).