In a medium bowl, combine mango, avocado, onion, lime juice, cilantro, jalapeno, and cumin. Mix well. Season, to taste, with salt and black pepper.
In a saucepan, bring chicken broth to a boil. Add couscous, stir and cover. Remove from heat. After 5 minutes remove cover, fluff with a fork.
Meanwhile, set a stove-top grill pan over medium-high heat to preheat. Brush both sides of pork slices with hot chili oil and season with salt and black pepper. Add slices to hot pan and cook 1 to 2 minutes per side, until golden brown.
Serve pork over couscous with salsa spooned on top.