Olympic size LED

What self-respecting technology blogger wouldn't mention the massive visual sweetness deployed during the opening ceremonies of the 2008 Summer Olympics?
In a world where thin is in, larger is better, and dpi rules all, the techno-envy crown goes to, none other than, China.  What's really unique is this crown jewel of the LED world was found amidst an otherwise low tech enviroment, filled with pulsating pistons, synchronized drums—and other effects—being revealed as "people-powered."
For those of you who don't know, I'm talking about the Olympic-sized LED, 230ft long and 70ft wide, literally rolled out like a scroll during the opening of the 2008 Olympics.  The opening ceremonies themselves were epic in scale and filled with grand pageantry—a sight to behold.  It was quite impressive.
But the moment which stands out for me, was when floor of the stadium visually came alive. Beginning with interpretive dancers swaying their arms on the ground to reveal that their limbs were acting as brushes to "paint," as they danced, an ancient brush painting of China's past.  Then, as more dancers came onto the scene, the specatacle continued with the floor "moving" as the scroll representing the BIG screen rolled back and forth; the whole while the images on the floor seeming to move underneath them.
 If you haven't had a chance to see it, track it down and do so. It'll be worth your while.