I'll break this out into a new thread to discuss overall lifecycle issues.
We need to be clear about what "supports" means. tobrien said eclipse supports the nested structure in this thread:
The notion of supports to me is does the maven plugin have the ability to generate the correct ide project. Supports is also a question of what do the maven plugins/ide tools for svn/cvs work best with. I'm inclined to believe that the entire logging project will be versioned/relased together rather than having implementations roll out independently. Maybe not though.
This is why I'm looking for a lifecycle overview of how we are going to use all of the tools as it needs to flow from initial development through to end of life service pack maintence.