While researching this same thing I came across the Gemini framework being developed by Tim Jones:
Github - https://github.com/tgjones/gemini
Website - http://documentup.com/tgjones/gemini
It's an attempt to integrate AvalonDock with Caliburn.Micro to provide a single framework for building IDE-like applications. It's still in the early stages, but he's implementing some interesting abstractions that build upon Caliburn's overall design.
It also has some good demo applications that show how the framework could be used.