I was browsing – cause that is what I do. – And I came across this very flexible, yet young CMS. :: http://radiantcms.org/

One of the cool things that I liked off the bat:

• Update the data on display from an XML feed.

I immediately thought of a site I consulted for : scriptureearth.org that this could be a solution for that. (The site is in production but I am not sure how easy it is to update the data it displays. The connivence of a XML feed is that the site would be able to be updated from an app based in the workflow of the publisher.)