fjtorres makes a good point.
However, if a reader with a pen and a touch screen cannot save/export/transfer the notes anywhere, but stays as an island onto itself, one can then legitimately pose the question:
Why bother?
I don't live on my ebook reader. I can't print from it. I can't store it, backup it, etc.
If I make notes I assume to be able to access and play with them.
I hope PocketBook will allow a useful way of handling notes to pdf/djvu files.
If not, then in my case at least the search continues again.
P.S. I also agree that glossy low-res screen using, battery munching 4 hour tablets are not eBook readers. They are portable eye strains with a limited battery life