I bought a couple of 1 gen nano refurbs and need to get cases. I know all ipods need a size/gen specific case, but are the 1gen and 2gen nanos any different size/feature location? I should have left the plastic on mine but stupid me peeled it off the back. I did leave it on the face. AFTER peeling it about halfway off I realized maybe I better not do that. So I laid it back down but its got bubbles in it. Anywho...same case or do I have to look for 1 gen specific cases?