Maria Reznikova and her associates at Maria Concetto Winery are into gadgets. Their Calistoga tasting room features “levitating” wine bottle holders, spinning top-like decanters, small drones, a 3D wine bottle hologram sign, a karaoke machine and a replica of a 1922 Model T Ford parked out front. But the most notable is RobinoVino, their wine serving robot sommelier. Working with an engineering friend, Reznikova commissioned RobinoVino, described as “the world’s first” such robot sommelier. M