[Kumabjorn]

I'm starting this thread because this actually goes beyond Marvin, but here seems to be some of the cleverest people with knowledge about e-Readers.

I have used e-Readers since Kindle second generation (soon exchanged for 3rd generation since it came on the market only two weeks later), with the advent of smartphones and tablets e-reading has been simplified, but also diversified. That is wonderful in so many ways as it give consumers more choice and a plethora of features in our preferred e-Readers. But it also raises some problems with regard to annotations and highlighting. Simply put, they are not transferable between apps and platforms. But, when I carry a paper binder it doesn't know if I'm reading in my personal book, a library book or some book I've borrowed from a friend.

I think the next big step in e-Reader compatibility has to come within this area. Now that I started using an iPad Pro 9.7 and find that Marvin supports my reading needs better than those I've used on other platforms I also realize that all the hard work I've put down on other books, annotations, highlights, comments, restructured outlines (I read a lot of non-fiction) and other things are for all practical purposes lost since they don't travel over apps and platforms.

So here is what I'd like to know. Doesn't highlights, annotations etc. adhere to some sort of rules under the ePub definition? Couldn't those be synced to a standard format in a cloud directory defined by the user? Hence, they would be available for the reader regardless his/her choice of platform and app.

As an example, I don't use iPhone but Android and I get that there is little incentive to develop for that platform. But if I'm reading a book in Marvin and I suddenly realize something about it I need to jot down, but don't have my iPad with me but my Android phone, I'd like to open that book in Moon+ or Mantano or something else, find my place and add those thoughts and then they would be available next time I look through my annotations in Marvin.

Maybe I'm asking too much, but my music is fairly platform agnostic. I get the same covers on Google Play Music as I get in iTunes. I just wish this was possible for books as well.