I like the animation, it's an interesting way to show time series. If I were you, I would explore opportunities to build animated charts of all types (there's a challenge in the axis animation, to keep it smooth so viewers can make comparison between past and present without effort).
Thanks - that's actually a pretty good idea. With the base structure already needed for the bubble charts - animations, drawing axes, etc., it is not gonna be too difficult to extend this to other chart types.
May be when I get some spare time - I will put it into this.
