Warning! Deprecated! New version: https://github.com/Dedas/domnotify
Linux only.
A sleekXMPP notifier for Dominions 4
A work in progress. Don't expect this to work very well at the moment.
Link to discussion on Desura forum: http://www.desura.com/games/dominions-4-thrones-of-ascensions/forum/thread/dominions-4-notifier-dom4notify