Here a collection of links regarding the Restlet Framework (restlet.org) and how to use it with Maven and OSGi
OSGi + Restlet
Three blog posts on building restlet based web services using Equinox
Mail discussion: Adding OSGi as another protocol to Restlet
OSGi
Equinox Server-side Quickstart
Equinox Server Project on eclipse.org
Restlet + Maven
Official Restlet Maven repository
Restlet
Using Restlet as a WebServer rerouting requests to a number of other servers (from restlet.org documentation)
Simple Restlet Demo Application inside Servlet container (showing how to use Application and Resources)
Host a Restlet server inside a Servlet container (eg tomcat) (from restlet.org documentation)
Applications using Restlet: Hackystack, restlet.org
Tutorial Set up a servlet based Restlet service
Serving Restlet Files from within the current jar/project/webarchive
Mail Discussion about how to serve files from within a war
Mail Discussion about how to server files using the clap protocol Restlet documentation CLAP protocol
Code with Joy 
Thanks for linking to our project, but actually it is called Hackystat, not Haystack. 🙂
Oh, sorry for that – fixed that!!!