The Project Info screen is certainly useful for, well, project info.
But I do like the idea of sticky notes along the way. Maybe just notes attached to markers would be cool.
You're listening to your project, and you notice something that needs attention, or you want to try something different, but you don't really want to break the flow to fix it right now.
Insert marker, right click, type note to self, go.
To an extent, you can do that now with the marker name, but if markers are too close, the text overlaps, and you can't read it.
Good idea.