ownCloud News: http://algorithmsforthekitchen.com/blog/?p=580

* ownCloud is mainly for LAMP but also works on Nginx (which I presume is the N): http://owncloud.org

* it’s a web app, and there are several mobile clients: https://github.com/owncloud/news#mobile-clients

* simple UI. What do you mean by »Inbox system«? (If it’s »unread items«, we have that)

* it’s open source, AGPL v3, code up at https://github.com/owncloud/news

* Plus: We have an API so anyone can code apps for it: https://github.com/owncloud/news/wiki/API-1.2

What do you think?