First of all, we'll remind you that the prolungated use of a MP3 player at a high sound volume damages your hearing IRREMEDIABLY ! (see
THIS NEWS ITEM). However, and with no intention of hurting yourself, in some cases the bridling of the iPod at 100 dB might be a problem, for instance to use a big Sennheiser device.
So to come to what this news is about, GoPod reached version 1.3.
http://gopod.free-go.net/
Apart from the iPod Shuffle, every (recent) iPods are now compatible with this soft, including the nano.