Question about system architecture, noux and interprocess communication

First I wanted to say, I've been following Genode for about a year and I'm very excited about its  progress.

My question has to do with Noux and how communication is done between processes, and the eventual porting of D-Bus.  I'm unsure about just how isolated each noux process is, from other noux processes, and how something like d-bus could share information between running processes.

In addition does each process always execute in it's own noux?  and if so how could something like a ps command get information about all running processes?  I'm just trying to get a handle of things before jumping in and attempting to port additional components.

Thank you, -J.