I'm sure something could be worked out with the PA team. They even allowed some guy to port it to NDS as a game:
http://www.projectaon.org/staff/frederic/
It seems that if someone would come forward, with some knowledge to produce something with quality for an ebook format, it could be a reality:
http://www.projectaon.org/staff/david/index.php
It would just be hosted through their website, though.