Is Ashton Kutcher the next new-media mogul? More than 400 people ponied up a staggering $350 each to hear the actor and Fast Company cover boy discuss business innovation at the Edison Ballroom the other day alongside top executives from DreamWorks, Nokia and Nike. Kutcher — who beat CNN in a race to see who could gain 1 million followers on Twitter first — is also an angel investor in social media company Foursquare. “He’s a better tech guru than actor,” joked one attendee.