The Rx work you guys are doing is truly fascinating. Every time Bart presents on this topics I always find it mind blowing and inspiring at the same time.
For most of my career, I've been building server side solutions with very little to no UI. Most of the Rx demos I see seem to apply perfectly to UI scenarios. I personally have trouble thinking of how I could expose events and leverage Rx in my server side work.
I'm guessing everything from data access, parsing, service call etc.. could all be modeled with IObservables in some way. It would be great if there were some Best Practices or Reactive Patterns type of document that should hows to backend and ui layer patterns.