All4Cellular offers the iFrogz Luxe Hard Case for iPhone 4 and 4S in Frost/Azure for $1.99 with free shipping. That's a buck under our mention from last week and the lowest total price we've ever seen for an iFrogz iPhone 4 case. (It's a current price low by $1.) This hard plastic case features a semi-opaque finish. Deal ends July 31.