Archimedes is notoriously bad at automounting, which means that it's a bloody nuisance to play music from my iPod. The sound output from Archimedes' on-board audio is not that good anyway, so I just want to use the USB port to power the Universal Dock. The only problem is that Archimedes still grabs enough control over the iPod's disk for it to display the Connected. Eject before disconnecting message and not play any music, even though the drive doesn't show up as mounted.
How to eject it properly (see the comments here):
Find out which device the computer is using for the iPod with ls -l /dev/disk/by-id. Eject the pod with sudo eject /dev/sdd1. (replace "sdd1" appropriately)