While we can’t be sure that our Diet Coke purchasing experience would be significantly improved by a 46-inch LCD touch screen, Flash technology, motion graphics, high-definition video, and Bluetooth capabilities, the thusly enhanced Coca-Cola vending machine (at right) won a Gold Lion in the design/point of sale category at the 2009 Cannes Lions International Advertising Festival. The souped-up machine, which debuted last year at the Beijing Olympics, was designed by Miami-based Sapient Interactive. Here’s hoping that as the machines are rolled out, they’ll be manufactured in a hue other than the bland, industrial gray we associate with shady ATM machines and old-school Casio graphing calculators. Meanwhile, Coca-Cola also picked up a Gold Lion in the viral advertising category, for the YouTube hit Signs, a short film for Schweppes directed by Patrick Hughes for Publicis Mojo of New Zealand. We’ve posted the charming video, which makes us crave a fresh Sharpie Magnum 44, after the jump.