Core Cases has introduced its new Aluminum Slider cases for the fourth-generation iPod nano and second-generation iPod touch. Featuring a slider-style design, the cases also offer an anodized aluminum outer shell, EVA foam interior lining, cutouts for open access to all ports and controls, and a small cutout for attaching a lanyard or strap. In addition, the nano case features built-in screen protection, while the touch case includes a screen protector.…