Wolfson Microelectronics, which makes the audio chips found in most iPods, is set to unveil a new low-power chip, the WM8985. According to Wolfson, the chip will be 70% more efficient than those found in current iPods. But don't expect the new chip to give you 70% more playing time on your Apple-issue, factory-installed, do-not-remove-under-penalty-of-voiding-your-warranty battery. Watch a few eps of Battlestar Galactica on that LCD, or even leave it on to show off album art while you're listening to music, and that battery will drain like a leaky hose no matter what kind of audio chip you've got.