The Internet Archive has started to distribute books as DAISY
(http://en.wikipedia.org/wiki/DAISY_Digital_Talking_Book), something
we should definitely take a look at. We might also consider leveraging
the GNOME accessibility framework to provide book-reading features for
Epubs and PDFs in Read -
Bumping up this recent thread on the bookreader list about text-to-speech.
Mike and Gregor, in case you haven't seen what's currently possible:
I believe James S's Read Etexts uses speech-dispatcher to read selected
text. Aleksey and others may have done further work with espeak... I've
included