1. An implementing mechanism, providing for effecting tasks associated with user selection of task-associated objects, and being associated with an environment, the environment comprising one or more environmental devices, the implementing mechanism comprising: resources including user interface facilities supporting display of task-associated objects, communication facilities enabling communication with environmental devices, display facilities enabling display of task-associated objects, and input facilities enabling user selection of task-associated object; and a tasking software system including a state tracking subsystem, a cluster formulation subsystem, a cluster presentation subsystem and a transition subsystem, wherein the state tracking subsystem supports context determination; the cluster formulation subsystem formulates clusters, each cluster comprising selected objects, such formulation being responsive to context; the cluster presentation subsystem supports the formatting and presentation of task-associated objects of an active cluster responsive to context; and, the transition subsystem supports transitions among formats/presentations of an active cluster; the tasking software system operating in coordination with the resources so as to display, via the display facilities and responsive to context, clusters of task-associated objects and, by selection of any such object, to enable a user to activate a task respecting one or more environmental devices.