It took a while before I made my mind up, but this weekend, I finally gave in and bought an iPod Touch (16Gb). At first, I was super-excited: the look-and-feel (in this case you can take that literally) is out of this world. However, when I plugged in my earphone, I immediately heard a very noticeable 'hiss' (like 'white noise', very soft but still quite irritating). It's not music related, as it also occurs on the 'home' screen when no music is playing (or even on the initial 'plug in this ipod' screen shown on the touch's initial start up). The most annoying is that it is also very noticeable during 'quiet' songs (when playing on a relatively modest volume level). Strangely, when I play music and turn the volume down completely, the hiss also disappears. I'm using Etymotic ER-6i (in-ear) headphones but even with the standard Apple headphone, I can hear the hiss (less pronounced, but that's probably due to the Etymotics having far better sound quality/noise isolation. For reference: I tried my headphones on a new nano, and it was absolutely silent). I've looked on the net, and found some forum messages (here and on iLounge) from people with the same problem, but most of them seem to be about W39 iPods, while mine was from W45. So, my question is: is anyone else hearing a hiss on a recent iPod touch? Is this a common problem or an (more or less) isolated case?