Cut cantaloupe in half and remove the seeds. Use a melon baller to scoop out pulp. Add melon balls, strawberries, grapes, and kiwifruit to dressing; toss lightly to coat. Let stand for 15 minutes to allow flavors to blend. (To make ahead, cover and chill for 3 hours in the refrigerator.) Makes 8 to 10 side-dish servings.