Ubiquitous workspaces are future media-rich environments that employ new forms of operating systems and services to coordinate and manage interactions between people, multiple display surfaces, information, personal devices, and workspace applications. e-Ghosts is a meta application which makes novel use of workflow to support the coordination and orchestration of briefings and demonstrations within a ubiquitous workspace. This paper describes this new class of application and discusses a range of characteristics that need to be considered in relation to their design and implementation. Managing the trade-offs between interactive and automated modes in such dynamic and complex environments is of particular concern.