In the easy-to-use eBook tools department: Vook Relaunches as E-Book Publishing Platform. Produces ePub and mobi files:

The Vook platform is meant to be easy enough so that aspiring self-publishers can use it, but robust enough for enterprise use. It was designed to be able to create and automatically distribute both text-only books and multimedia enhanced e-books to the Amazon, Barnes & Noble and iBooks e-book stores.

It’s not free, though. But definitely interesting, and much better than their previous business model (making multimedian eBooks called ‘Vooks’)