"Pointless. The iPod shuffles are more durable than the hard drive based iPods, so I don't see the point of getting a dock to stop it getting knocked about on your desk. Doesn't include a line-out port"
"Essential if you have a third-generation iPod and want to charge and sync your iPod simultaneously. 4G iPods and iPod minis can charge and sync simultaneously with the USB2 cable included in the box."