HT1853: Safely disconnect iPodLearn about Safely disconnect iPod
Currently Being ModeratedMay 27, 2013 9:06 AM (in response to dsudarshan)
The placement of the device menu has changed in iTunes 11. To enable the classic view you will need to press Control-S for the Sidebar and Control-B for the menu bar. I have included an article below that covers some of the changes.
In regard to the issue with your iPod nano not showing in iTunes. This article should help you troubleshoot this issue.