To prepare chicken, combine brown sugar, cumin, salt, garlic powder, and red pepper; rub over chicken. Heat vegetable oil in a large nonstick skillet over medium-high heat. Add chicken, and cook for 5 minutes on each side or until done. Remove from pan; keep warm.
To prepare sauce, add garlic to pan; sauté 30 seconds. Add juices and honey; cook 3 minutes or until slightly thickened. Remove from heat; stir in cilantro and mint. Serve with chicken.