I saw the presentation of this at the Google IO conference. There was a marked audience reaction when they showed this on the screens, along with calls for "ca

I saw the presentation of this at the Google IO conference. There was a marked audience reaction when they showed this on the screens, along with calls for "can we get the source code." We're toying with an interface like this that's user-selectable between timeline-slider view and wikipedia-like history view. I'm guessing that temporal completeness in data structures and UIs with respect to any atomic data structure might be rather more significant in the future.