This is a very cool map. It allows users to pick states and shift strategy. I like it because it is interactivity fosters instruction on strategic impact. I would love to see local groups working on a campaigns to raise money to save a river, mobilize turnout, door knock,etc. use something like this for local campaign efforts.
I might try to make one of these for the Inner Purple Line project. How many people from which neighborhoods need to support the Inner Purple Line project to organize 10,000 local voters. (The project is being killed by a small group of country club voters).