I would like to create a RESTful app on Google App Engine. I would like to provide XML and JSON services. I have briefly experimented with Restlet, Resteasy, and Jersey. I h
I recently put together a project template with Jersey, Guice and AppEngine at GitHub. It has been developed with SimpleDS, but it can be modified to work with Objectify / JDO easily. The project is live here.
It should be a good starting point for new projects.