Very nice, there was also a similar performance set up for an AC/DC gig: http://vimeo.com/11160666

Pretty interesting. I've always wondered how stuff like this is made, but there doesn't seem to be much info. (I haven't looked much either)

Get a lot of high power projectors, creating 3d models of the building, animate parts of the 3d models, and project it into the 2d plane of the building. See this video for additional reference. http://www.youtube.com/watch?v=jDHfa03XzaM

I feel this kind of thing is diminished by posting it on the Internet where the commentators can annotate it with "jizz in my pants".

I viewed it on Vimeo, rather than Kotaku, and the commentary there was much higher quality. I did wish however, that there had been a "no flash" policy during the filming, as the constant camera flashing was quite distracting.

No flash policies seem consistently ignored, often by people who don't know how to manipulate their cameras to turn the flash off, so I wouldn't hold hope that this would make a huge difference. (People still go around museums constantly using their flash, so I don't see why this would be any different).

You'd think it would be common sense that a teeny tiny digicam flash isn't going to light up Wenceslas Square...

Old town square

you can see more about it on their website http://www.themacula.com/