PodsPlus today announced the Aluminum N2 case for the second generation iPod nano. The N2 case is an aluminum case featuring both screen and clickwheel protection. Available in six color combinations: black case with black/blue/red/pink/green clickwheel cover or silver case with black clickwheel cover. Pre-order the N2 for US$29.99 and the company is offering free shipping when the case is available in mid-November.