All4Cellular offers the Enercell Wireless Charging Skin for Apple iPhone 4 in Silver/Black for $6.95 with free shipping. That's the lowest total price we could find by $3. This skin works with the Enercell wireless charging pad (required, but not included) and features WildCharge technology. Deal ends January 28.

Update: Coupon code "a4c5off" knocks it to $6.60.