Just to say that InfoQ have posted an article [1] that introduces the Restful Objects spec [2], and its two implementations, Apache Isis [3] being one of them.

Restful Objects is all about providing a hypermedia API from a domain model.  In the case of Isis, this is done automatically, leveraging its internal metamodel.  

Because Restful Objects is a spec, it also opens up possibilities for independently developed clients (eg Javascript) and server implementations; indeed this is already happening and has brought some "new blood" into our community.  

Anyway, if the idea of marrying up REST and domain models sounds of interest, check out the article.

Dan Haywood
committer: Apache Isis (incubating) 
[1] http://www.infoq.com/articles/Intro_Restful_Objects
[2] http://restfulobjects.org/
[3] http://incubator.apache.org/isis/