I am looking for a widget (HTML5, Dashcode, Javascript, whatever) that will allow the user of a textbook published from iBooks Author to use their finger or stylus to hand write notes within the textbook itself. I am not sure if it is even possible.
Many students like taking handwritten notes while reading and this functionality would be awesome. The comment note is nice but I have had students say they earn better when actually writing the information.
You may be able to embed and adapt this finger painting demo (live example) in javascript within an HTML widget. Or any equivalent 'touch drawing' code.
However I would really recommend to not even try to implement this as solutions like swipe make typing on devices about as fast as handwriting.