Pax Reflector reached a point where it is almost useful. It consists of 4 bundles (plan to create a uber-bundle later).
If you deploy those (pax-reflector-service, pax-reflector-servlet, pax-reflector-types, pax-reflector-html) together with Pax Web and Pax Web Extender - Whiteboard, then you have a html view into your running OSGi system.
You can also register additional Root Objects, to get a more direct line into the application.
The various "expose" attributes are not implemented yet, and future will bring a more attractive view.