Combine milk and the 1/3 cup maple syrup in small saucepan; heat to 120°F. Meanwhile combine flour, cornmeal, oat bran, yeast and salt in large mixing bowl.
Add milk mixture, Egg Beaters and oil to flour mixture. Mix with electric mixer on medium speed 1 minute or just until combined. Cover bowl with plastic wrap and refrigerate overnight; batter will bubble and thicken.
Spray waffle baker with cooking spray; preheat. Meanwhile combine mangoes, blueberries and the 2 tablespoons maple syrup; set aside. Pour 1/2 cup batter into center of preheated waffle baker. Close lid and bake without opening during baking. When waffle is done, carefully loosen waffle with fork, remove and keep warm. Repeat with remaining batter. Serve with fruit mixture.