3rd Gen Touch with Mt. Lion iMac My ipod has the original iOS 3(?). My iMac is 2010 Intel 7 upgraded to Mt. Lion and the newest iTunes. I use my ipod to play music only. What OS is usuable on the ipod 3rd gen and can I use it with Itunes 11 to back up & load my music onto the ipod from my iMac Mt. Lion X OS?