Here are ome recipes from a Brazilian cooking show that i've just translated for you. I haven't tried them all yet, but they looked real yummy:

Place the mangoes and the 1 can measure of water in a blender and run the machine to make a thick juice.Stir in the condensed milk. Dissolve the gelatin in the 5 tbs water. Mix the dissolved gelatin with the mango cream. Pour into a mold, chill 5 hours. Unmold and serve with a blueberry sauce.