We have a hand me down 6th gen ipod nano. It has the latest 1.1 firmware update for the battery turn off feature. When we press & hold the sleep button, we get the rotating icon and the ipod nano 6th G powers off. When we press it again... after waiting several minutes, it displays the Apple logo and then boots to the main screen. Our problem seems to be that the battery drains to nothing, EVEN with the ipod nano 6th G turned off with the rotating icon from 1.1 firmware update. We can fully charge it - take it off the charger - full battery is displayed, and the press/hold the sleep to get the rotating icon. The next day, the battery is dead !!