perhaps you are correct since what you say is logical but i am not sure. if i get some time i will test. but you got me to rethink about my experience with this that i used to formulate my answer.
i was creating content on a mac computer where the content is within a keynote, which is dropped into an iba widget. everything worked as expected from start to finish product on an iPad, even with an unusual font. i think one time it was dom casual. on the computer i have lots of fonts, as i was stupid enough at one point to buy the adobe mega package of fonts. when i had problems switching to the updated mac software last july, i copied everything associated with my current book to a new computer with the updated software. i didn't copy the fonts. when i opened up an old keynote file with the current keynote, i got the message of missing font and it was changed. i imbed everything into my keynotes. now by your logic one might reason that the font is imbedded into the keynote, so that this should not have happened.
so in my brain was stored that you needed fonts to be present wherever you worked. i didn't think this out sufficiently that this situation was different from jbarts and i wish i had spent a bit more time to document the exact experience i had. i shot from the hip in an effort to answer many questions where i should have been more careful. this could very well have risen as a result of how the keynote conversion program works.
thanks for your reply.