1. A method, comprising: providing a device with a first touch sensitive display and a second touch sensitive display; providing a computer system with a display; docking the device to the computer system to form a unified system; generating a unified desktop for the unified system, wherein the unified desktop is rendered by the device and includes at least a first portion displayed on the first and second touch sensitive displays of the device and a second portion displayed on the computer system display; in response to the docking, determining whether a first window was displayed on at least one of the first and second touch sensitive displays of the device before the docking, wherein after docking, the device controls the computer system, and the device generates the unified desktop for the unified system, and wherein, after docking, the first window is not displayed on the first portion of the unified desktop, wherein before docking, a second window was displayed on the computer system display, and wherein, after docking, the second window is hidden; and in response to determining the first window was displayed on the device before the docking, migrating the first window from the device to the second portion of the unified desktop on the computer system display and displaying the first portion of the unified desktop on at least one of the first and second touch sensitive displays of the device, wherein the second portion of the unified desktop displayed on the computer system display hides a desktop displayed by the computer system display before the docking.