Cut peel and white pith from oranges. Working over large bowl to catch juices and using small sharp knife, cut between membranes to release segments. Add strawberries, kiwis, 2 tablespoons orange juice, sugar and cinnamon to bowl; toss to blend. Chill at least 30 minutes and up to 3 hours.
Divide compote among 8 bowls. Garnish with mint sprigs, if desired. Serve with Hazelnut-Cinnamon Biscotti.
