Combine pork, teriyaki sauce and ginger; let stand 15 minutes. Meanwhile, blend together next 4 ingredients; set aside. Coat pork with cornstarch. Heat 2 tablespoons oil in large nonstick skillet over medium-high heat. Add pork in single layer. Cook 4 minutes, or until golden brown, stirring to separate pieces. Remove pork. Heat remaining 1 tablespoon oil in same pan. Add bell pepper and onion; stir-fry 2 minutes. Add pork, pineapple, cherries and sweet & sour sauce mixture; cook, stirring, until sauce boils.