This morning my iPod nano crashed when I selected ‘Shuffle songs’. Well, it didn’t crash as in “something collapses”, but it rather froze. None of the buttons were responsive and the display stayed fully lit. I read somewhere that this should help:

1. Check that the hold switch is in the off position
2. Hold down both the menu and then the middle button (in that order), for about 10 secs, this should reboot the iPod.

In my case, however, it didn’t take long until the battery was empty (display always on). Once I hooked it up again with my MacBook and the iPod finally had some power again it came back to life. Draining the battery completely does of course reset the device as well 😉