At the moment, there appears to be no indication if - when you have a note open in the note editor - you have changed anything in the note since you opened it. For me, it means I don't know whether to click Ok (saving all changes), or Cancel (as I have not made any changes).
I know I could click Ok regardless, but I know that at least once previously, I have made an unintentional change to an open note (I opened it to copy some text, and instead somehow deleted some text), so I am reluctant to just click Ok each time. Thus, I would appreciate an indicator in the note (eg an asterix in the note titlebar, the same bar that contains the minimise, maximise and close buttons) if a note has had a change made to it since I opened it.
Servicio de atención al cliente por UserEcho