Well, you have one smart device, and one or more headless devices that require you to dock your smart device. But, the big idea is that these dumb devices could be anywhere... the office, your home, your car, the coffee shop, etc... Many locations, one device - no syncing. With each dock conveniently adapted to it's locale. So, the desktop at work has a big screen and extra storage, the laptop at home is small with a larger battery, and the dock in your car simply charges the device as you drive.

It's a great vision, if someone could just standardize on a docking mechanism.