Stir curry and cumin in small dry skillet over medium-low heat just until fragrant, about 45 seconds. Remove from heat.
Combine chopped spinach, nonfat sour cream, nonfat yogurt and minced garlic in processor. Blend until spinach is pureed. Add curry mixture and hot sauce and process until blended. Season to taste with salt and pepper. Transfer to bowl. (Can be prepared 4 hours ahead. Cover and refrigerate.)
