apples ibook app works great with epub (as thats it's native format)
there are tons of free tools which let you set cover and metadata and add bodytext and make an
epub file with it which you add to itunes and then sync to ios devices
epub is not a closed apple format but an official std used by many apps
Sorry Tom, I think you have been reading too many Apple iPad adverts - there is plenty you can make up yourself and add to an iPad - see Rudegar above - as with the iPod and even the Kindle - the software is out there for you to do your own thing mostly for free - my 50 audio books and 60 pieces of classical music on my iPod are all DIY and work just fine. Go check the internet then try some your self.
Sorry Tom - try <http://www.acapela-for-iphone.com/> for size - it is all out there if you care to look - happy hunting.
ps - you did write “You cannot load anything into an iPad (or any iOS device) which is not obtained from the app store.” This is unequivocally not correct. I have yet to get my hands on an iPad, but 30 seconds on the internet will show you how wrong you are.
Sorry Tom - try <http://www.acapela-for-iphone.com/>
I thought the question here was whether an ordinary non-jailbreaking user could add voices. Acapela doesn't do that as far as I can see: From their FAQ.
"- I would like to have your voices integrated into VoiceOver
- I want to use my iPhone with your voices but the voiceover doesn’t have the arabic language
Acapela TTS for iPhone and iPad is not an application for end-users. This is a Software Development Kit dedicated to developers and integrators and not an end-user solution.
Unfortunately, VoiceOver application, included in iPad, iPhone 3Gs and iPhone 4 cannot use our voices. It works only with build-in voices of iOS (that cannot be used by other applications than VoiceOver)."
If you do have examples of voices, fonts, or keyboards which users can themselves add to their iOS device without creating an app or violating the iOS license agreement, I would be interested in the urls.