An annoying thing that always happens with touch screen devices is that the battery dies. Applications running in the background severely feminist your battery life. Follow this guide to stop this.
By double tapping the home button on the iPod, you should be able to bring up a small menu on the bottom 5th of your device.
Once this screen is showing, tap and hold any application icon on that menu. A smaller menu will show up, click the red button to stop the app from running. Your battery life will now last much longer