Still under development. It doesn’t handle images yet. Hence not publishing to the WordPress plugin repository. However. It WILL create an ePub of all the posts in a category when you save a post. If you have images in your posts then the ePub will open fine, it just won’t validate at http://validator.idpf.org
The code for the plugin that converts your WordPress posts into an ePub is on GitHub if you want to fork it for your own devices. Just an attribution would be nice…
If you have any ideas how to improve the code. I’d be very happy to hear! Just comment below!