As of 3.4RC4 the Platform Plugin Developer Guide how has an overview section on the Common Navigator (I was wondering who wrote these things, turns out we developers do). You can find it in the Programmer’s Guide section under
Common Navigator Framework.
When I first started using the CN, I found the tutorials on Michael’s blog, but I had a hard time with them as they were too detailed. I wanted a higher level understanding of the concepts. I’m hoping that this new documentation provides that.
If you have corrections, or want extensions or amplifications, please file a bug (against Eclipse/Platform/UI) and I will take care of it.