Someone called me today and BAM the ipod damn near blew out my shure E3's and killed me. I repeated it a few times and apparently when my GSM phone is active, if it gets within 2-3 inches of my ipod, the RF going through the air makes the click wheel go crazy and it makes the volume swing back and forth violently. That'll wake you up to have your ipod go from 15% volume to 100% in a second. Try this yourself, put your headphones on, start playing the song at around 25% volume or so, then make a call on your cell phone and put it near the ipod with the hold switch off. I think if I were to write the next firmware, I'd release a patch that would limit the speed that you can ramp up the volume at but leave the ramp down alone.