The Obamas and Sarkozys have arrived at the opening of the NATO summit in Baden-Baden, Germany. Michelle Obama changed into one of the most poufed dresses we’ve seen her in. Perhaps too poufy? We love the neckline on Carla Bruni’s dress. Update: MObama’s dress is by Azzedine Alaia and Carla’s dress is by Dior. [Mrs. O]