Ever wanted to use the ipod whilst charging it via USB, on OpenBSD? I found a nice feature for scsi devices. I'm not sure if eject was designed with this in mind, but it works.
$ eject /dev/rsd0c Why you may want do this? When an ipod is plugged in via USB, you cannot make use of it's menu. Ejecting the device makes this possible - after running the command, you can make use of the ipod's menu whilst it's being charged... that includes playing music!! See http://www.gnu.org/software/gnupod for a text based version of transferring data to and from. 3.8-current now provides scsi access for all ipods, including the nano. Ed.