I reported my battery life problems on my 3rd gen iPod Touch earlier & found this thread... I took some of the advice and turned Airplane mode ON, and disabled push notifications. It seemed to have improved my power life so far. Question: What exactly does Airplane mode do? I thought it just disabled your WiFi, but I was able to turn Airplane mode ON, and then manually re-enable my WiFi, so I'm still connected on WiFi even though Airplane mode is still On. Does Airplane mode do more than just disabling WiFi?
It diables WiFi.