@piter432
Being cynical here again but....Google is pushing their Keep software hard and would not implement Opera notes because of that, I guess. The great feature about Opera notes was that you could click on the note and go to the web site from which you copied the note...awesome. Sigh...
Guys from ChrOpera said on MyOpera Dekstop Team Blog that they won't bring it back, so it's not Google decision, but it's decision made by stupid ChrOpera's vision of their browser.