1. The dashboard is in a rough spot right now--I haven't quite finished the transition to the next-gen dash--but it does do "realtime" visualization of events m

1. The dashboard is in a rough spot right now--I haven't quite finished the transition to the next-gen dash--but it does do "realtime" visualization of events matching arbitrary queries with under 50-ms end-to-end latency. It'll push about a thousand events/sec, depending on size and rendering complexity. The websocket protocol is pretty straightforward, if you wanted to build one-off system diagrams with streaming updates. 2. Yeah, that would be great. The historical event store space is pretty terrible right now, and it's such a big problem that I doubt I could realistically tackle it. Librato Metrics and Hosted Graphite are both approaching this as a service, and there's openTSDB if you have Hadoop people in-staff. Riemann has out-of-the-box integration with librato and graphite, but I haven't set up an openTSDB cluster yet. Modbus: that'd be cool. Implementing a Riemann server (i.e. a thing that accepts events from the wire) is pretty straightforward, though I'd need to understand the protocol. If you're interested in building it, I'm happy to discuss how.