Speck has introduced its new SeeThru hard shell case for the iPhone 3G and iPhone 3GS. Unlike the two-piece SeeThru for iPhone 3G, the new SeeThru is a single-piece design, made from translucent polycarbonate. Features include an integrated rubberized grip ring around the front bezel, full access to all ports, controls, and the camera, and an included screen protector. Available in a variety of colors, Speck’s new SeeThru case for iPhone 3G…