[WhatIsDukkha]

I've been impressed that microsoft has actually managed to keep pushing on onenote without abandoning it.

It's taken a while but it seems to have built some community and happy users.

But, yeah, I don't think open standards or longevity probably factored too much into the storage implementation or features.

I would think something built on top of annontated pdfs would get some of the features and flavor of onenote but I haven't seen anything attempt it.