I stumbled across this reading the new releases from Freshmeat:
epub2pdf
http://epub2pdf.com/
Version 0.1 has just been released.
Has anyone tried this?
I haven't yet. I'm very skeptical: the readme makes it sound not really all that advanced in its capabilities, and unfortunately, it uses the same name (epub2pdf.sh) as Jellby's script, which works well. (Not that either would be hard to rename.)
Not sure why I'm bothering bringing it up, really...