I have updated my eBook eBook Typography for Flowable eBooks, on the iBooks store.
The recent update to the iBooks app (this arrived the same time as the announcement for the iPad Mini), was causing a few oddities in the book. On investigating and experimenting, here is what I discovered.
I have used the MAC editor Coda from Panic for a while as my preferred web site and template editor. I have recently been using it to edit ePUB innards.
Coda normally expects that you are editing a site on a server, or at least transferring onto a server after editing locally, so the configuration for a 'site' may not seem initially appropriate for editing ePUBs. Nevertheless, setting up a local folder is straightforward. In fact, you can set this up to be the root of the complete ePUB, thereby giving you the potential to edit the various XML files (package files and TOC files).