Minor iPod Touch Issue

I genuinely love my iPod Touch (32 Gig model). In the words of Fake Steve Jobs, it "restores a childlike sense of wonder to my life." One minor problem I've found is that every once in a while, the battery starts eating itself and requires a reboot. I normally like to listen to podcasts during the day while I'm at work, but when the battery starts dropping like a rock, I have to stop. I can easily get a full day out of it just listening to audio then checking email and surfing when I get home. At first I thought the battery eating was Ziphone, but I didn't use the installer at all yesterday. I also disabled the wireless, which I should do when I get to work anyway.
At least this time my podcasts didn't go back and mark themselves as unread like the last few times. When I got home I had to figure out what I listened to. I should just bring the charging cable to work with me, but I rarely need it.