Chitek offers the Acase Superleggera PRO Dual Layer Case for Apple iPhone 4 in Black bundled with two screen protectors for $4.20. Coupon code "FCCZ2MCX" makes it free. With $4.50 for shipping, it's $3 under our mention from last week and the lowest total price we could find. This case fits the iPhone 4 for AT&T, Verizon, and Sprint. Deal expires October 11.