Case-mate has introduced its new I.D. case for the iPhone 3G and iPhone 3GS. The I.D. case is made from plastic and wraps around the back and sides of the phone, while offering a slim pocket in the back for two plastic cards, such as debit cards or identification. Ez-slide protective film is included to protect the rear of the phone; a screen protector is also included, and the case offers full access to all ports, controls, and the camera. Case-mate’s…