A mobile computing device with a mobile operating system and desktop operating system running concurrently and independently on a shared kernel without virtualization. The mobile operating system provides a user experience for the mobile computing device that suits the mobile environment. The desktop operating system provides a full desktop user experience when the mobile computing device is docked to a second user environment. A seamless cross-environment workflow is provided in a multi-operating system computing environment. Two or more application programs, running in independent operating systems, share user interaction state information including user data, user settings, and/or application context information. Interaction state information may be shared for applications that are used primarily to access and edit local user content as well as applications that communicate to a remote server or access and navigate other remote content (i.e., Internet-based application, browser).