All4Cellular offers the iFrogz Luxe Hard Case for iPhone 4 and 4S in Purple/Black for $1.49. Coupon code “MOM10″ cuts it to $1.34. With $2 for shipping, that’s tied with our mention from last week and the lowest total we could find for an iFrogz iPhone 4 case. This hard plastic case features a metallic facade and “soft touch” feel.