about 200 people all of a sudden froze and turned grand central station in new york into something like madame tussauds, no matter what they were doing. after 5 minutes they moved on as if nothing had happened. it reminds of the flash mobs that were somehow popular in 2003 or mobile clubbers. while flash mobs were often used as a new protesting form especially in the anti-globalization movement and mobile clubbing looks like a reclaim-the-streets rave for the ipod-generation, "improv everywhere", the mind behind the "frozen grand central"-performance, seems to be more related to improvisation theater and sometimes "live action role playing" for a mobile tech-savy crowd. since this can be found almost anywhere in the world, it's no wonder, "improv everywhere" indeed has a global section ("global" meaning anywhere outside the united states)... check out events in singapore, berlin, budapest... well, not really but almost everywhere!