The client portions are definitely in the library, and as you point out the node-webrtc library is looking really promising for interop with server processes.

If you need any help with the POC that you are currently working on feel free to reach out and I'll see what I can do (I'm the main dev working on rtc.io at the moment). Also, the primary dev on the node-webrtc project (modeswitch) is super helpful so I'm sure he'd be happy to help out also.

Either twitter or github is a good way to get in touch with me - usename is DamonOehlman in both channels...