Chop mango, peppers, onion, tomatoes and jicama into small salsa-sized cubes, combine in a large bowl. Mince or press garlic, add to bowl, mix. Squeeze limes over bowl, add EVOO, and mix. Season with cumin, salt and pepper to taste. Add most of chopped cilantro and lightly mix just before serving. Save some cilantro to top each individual dish.