I just downloaded the beta version of Adobe Muse. It's marketed to designers who don't want to code.
I created a new site with one page. Added a text box copied some text into it, formated the text and exported to HTML. After zipping the entire site I converted it in Calibre, added a cover and got an instant ePub. It all took about 5 minutes.
I was wondering if anyone else had tried it. The
beta version is free for now.