Based generally upon its earlier case for the first-generation iPod nano, PDO's Aluminum N3 for 3rd Generation iPod nano ($25) is a basic hinged metal case with an integrated clear screen protector and your choice of silver or black body colors. Somewhat confusingly, N3 drops the integrated rubber Click Wheel protector found in N2 for the first- and second-generation iPod nano, instead leaving the Click Wheel fully exposed. It includes simple silver…
