One day, I'd like to see something like this at an Oracle event.
Sure, it might be a little difficult if it's live, but I'm sure the technology will get there. Perhaps we'll see more of this type of thing once our broadband network gets up to scratch.
On a side note, look out for circles that do wild things - Japan in the 40s (medium red dot), China in the 50s (big red dot), Rwanda in the 90s (little blue dot), Middle East in the late 90s (green dots)... sense a trend?
Apparently Hans Rosling has some good TED talks, I might have to look those up.
Spotted at Pharyngula