Following up on the [Coke Zero Happiness machines imagineered for Cannes in ’09->http://www.adrants.com/2009/06/cannes-lions-the-calm-before-the.php], this year [SapientNitro->http://twitter.com/sapientnitro] plugs Unilever’s ice cream brands – with a machine that dispenses the frozen desserts when a person smiles at it.