I saw this on Macintouch this am, and I got one of these for the $5.80 shipping cost: SendStation - Products - PocketDock FireWire. This is mostly of interest to folks who have a 3rd generation dockable iPod, later versions would probably want a USB PocketDoc. There aren't that many of these left that are still working, so it's plausible that SendStation would want to dump their inventory. It's also kind of them to do so. They had about 1000 to start with.
If you have a firewire cable around, this device turns it into a 3G iPod sync cable. The combination is compact and convenient. In my case I have an external firewire drive on my desk that's only connected when I need it, so this will free up a cable for me.