This is related to a recent post here, but specifically for IOS.
To my knowledge, no Bible app has the ability to draw an image using a stylus and save that image in your notes. Many times when taking notes, a picture/diagram is worth a thousand words. Since I've gotten an iPad and Accordance, I don't think I have brought a hard copy of the Bible to church in several years (my parents would be ashamed). All of my notes are saved in my user notes. However, I miss the ability to think creatively in my note taking.
Not to mention, some writing/drawing apps have the ability to convert to text. This might be taking it too far...
I think I would settle for the ability to draw/save a picture.
Could it be an option to buy out one of the many drawing apps out there, or at least partner with them in the use of this technology, like Evernote did with Penultimate?