The Orange Cup frozen yogurt shop in Preston Center has closed. Surprised? With the inconsistent service, lack of options, and many competitors, I am not shocked. The only question is how the replacement yogurt store, Tutti Frutti, will compare. Unlike Orange Cup or Pinkberry, Tutti Frutti is self-served fro-yo. Choose from more than 15 flavors such as cookies and cream, birthday cake, royal red velvet, and pistachio. Still need more flavor? Toppings range from Oreo bites and candy corn to kiwi and pineapple. Can Tutti Frutti stay afloat among its many fro-yo competitors? That’s up to you and me.