Aluminum cases are a dime a dozen these days, as manufacturers are rushing to build the sleekest, most beautiful bumpers for the iPhone 4/4s. Most cases out there are of the slider type, with questionable effects on your phone signal. That is absolutely unacceptable! Crimson's Crimson AFC case for the iPhone 4/4s enters the market with a beautiful frame type case that offers a unique style in protecting your device. Does it match up to its competitors? Find out after the break!