pdf with canvas
hi falcon,I ran into something called active book wow it is amazing.. let me share, its basicly a pdf viewer wher pdfs are uploaded and we get a view of the pages in the file (showing on the top of the reader) but at the same time you can add simple pen writing, highlights, shapes or text, using the canvas api... I looked at drupal.org and found a few modules that allow the use of html 5 paint canvas.
the livefeedback kind of does the same but extermely limited, or probably not I haven't used any of the modules yet...
I am attaching an image of active book.. it is on a private server.. with paid access I was able to take this screen shot I believe this will have a great impact in learning even if it ends up as a canvas where the learner gets to practice multiplication or even writing using a stylus...
I hope you can see this great idea and consider it the next time you revise you road map I would love to help out by providing feedback...
as for the learners feed back if only one page is captured at once then it could probably be saved under /user/content/page .. I am sure you have much better experince in design than I do..