From a Raible Designs blog about documentation:

The last item on the AppFuse Roadmap for 2.0 M1 is setting up the documentation system. I’m still undecided on whether Confluence or DocBook is a better system to use. However, I am certain that using a wiki to document an open source project is the lowest barrier to entry.

Of course, we use Confluence ourselves for documentation, but a quick search on Google will show other projects that also use Confluence for documentation. Let us know what you think.

Confluence installed for AppFuse 2.0 Documentation...