I bought a 32Gb 2nd gen. week they were available. Even though everything else worked as advertised, I noticed my battery just not lasting as long as it used to. Coast to coast flights were getting low battery warning playing Solitare and music only which never happened before. The touch also got fairly light usage since I primarily used it for travel only. After testing found my eight month old battery was only holding around 62-66% of its original capacity. This equates to 20-24 Hrs. music playback w. wi-fi off. Took it to geni-ass #1 and he said it was working great. I should be happy I'm getting those numbers after eight months. Took it home, retested it and it certainly IMO wasn't what I expected from a $400 piece of hardware. Made an appt. at another Apple Store and geni-ass #2 tried giving me the same bull. I asked him how it was tested and he said continually playing the album I loaded after restoring to factory settings was getting just under 24hrs. I then asked him if wi-fi was on or off. "Off of course" was his reply. I then asked him if he looked at Apple's claim for battery music playback. I was on hold for a good five minutes and was then told to come on in and they would replace it. He didn't want to revisit the battery claims in the least. I also have a Nano manufactured about the same time and its battery was only getting 12 hours of playback vs. 24 claimed. It too was replaced at 6 months. I'm wondering how many early adopters of last newest Gen. iPods have this battery anomaly or am I just lucky? If the battery was user replaceable it wouldn't be a biggie but I surely don't expect to pay $80 bucks to have a battery replaced in under two years. Oh BTW, the replacement unit gets 42hrs. of music playback with wi-fi on.