I am keeping a personal change log of all the things that I touch in a day, but I may forget some things. It would be cool to have a block that has a button to generate the change log based on any updates you did since you last pressed it. I'm not a programmer, and I don't know the ramifications of generating such a thing, but it would be sweet.

In addition to this, it would be cool to have a "Last Updated" block to keep the users informed on touch-ups by the worldbuilders.