Doesn't work as stated

I was looking for a plug-in that added notes to the Edit Page view of a page so other people editing the page can see notes.

The description of this plugin says, “Attach notes to above or below the editor of a post” (my emphasis). That’s not true – completely.

The author doesn’t tell you that you have to add a note in a completely separate Notes area, accessible from the admin sidebar and then attach the note to a specific page or post. The problem is, you have to know the page’s/post’s id to attach it. I don’t know how to do that, which doesn’t reflect on the plugin, but it would have been nice to know that before hand.