Preheat the oven to 375°. In a roasting pan, rub the turkey breast with the olive oil; season with salt and pepper. Roast in the oven for 40 minutes, or until cooked through. Brush the turkey with the marmalade and broil until lightly charred, about 5 minutes.
Combine the cherries, apple, onion, pecans, jalapeño and ginger and season with salt. Slice the turkey and serve with the cherry salsa.