The New York Times tech guru David Pogue attends Improv Anywhere's latest mp3 experiment. It sounds part amusing geeky fun, and part disturbing mass hypnosis. I'd totally do it though: "A male voice, slowed down and processed to sound boomy and authoritative, said: "My name is Steve, and I'll be your omnipotent voice today." As happy, cool, electronic music played, he began giving us instructions..."