This is indeed an unfortunate name. The word 'closure' was, at first, used to describe a concept in programming: http://en.wikipedia.org/wiki/Closure_(computer_science). Then Clozure and Clojure came along. Now, I can see how these two are related to the aforementioned concept, but I simply can't see what these 'Closure tools' have to do with the concept of closures. Yet the name would suggest that they do. Is there anybody from Google that would care to explain?