Sounds like a very good thing actually. I think I want to try it. Thus far I did something roughly similar inside of Blender-Pipeline ( the thing I developed to focus on my movie ) where it tells me how much of what I need to do today is already done, to be on time for the deadline. Basically every time I do a small task a check it in a progress bar, and it quickly calculates the whole project and tells me how many % there is that I've done from today's part of work.

I have it running. It's amazing!!! Though ( I don't know if it's possible ) it could be cool that when it's locked, you could grab windows that are underneath it.