Originally Posted by Toxaris
At the moment it is not yet clear to which direction ePUB3 is going. I believe it is the long-term idea to support ePUB3, but not in the near future. Also, there are almost no readers supporting ePUB3.
epub3 is a recommended Specification effective October 11, 2011. We have http://readium.org/
that is an open source reference system and rendering engine for EPUB with suport for EPUB3. I think that the future is here and ibooks author from apple it's a proof of that.
My question is - anyone with some technical experience developing sigil considers the current code suitable to be enhanced in order to offer epub3 suport or it's better start from scratch a new project ?
Thanks in advance