[majormunky]

I think the delta format that Quill uses to store its data is pretty interesting, we use it to convert text written in a Quill editor to InDesign where we preserve the formatting (the delta format helped here quite a bit).

[jimmygrapes]

I never got around to implementing Quill (or any of its alternatives) but I do remember reading through the spec documentation some years ago with a vague sense of tingly pleasure. Sad to hear the final product wasn't so great, but I hope the effort and concepts put into that delta spec gets its due somewhere.