1. A computing system, comprising: a processor; a memory configured to store instructions for controlling the processor; a user interface device configured to receive natural language speech input; a graphic user interface comprising an array of facets arranged in a tiled configuration, at least one of the facets being associated with at least one application; and a natural language speech parser configured to parse the received natural language speech input according to instruction grammars to determine instructions and respective parameters of the determined instructions, wherein, upon receipt of natural language speech input comprising a first instruction and a first parameter of the first instruction, the processor is configured to cause a focus to shift to a facet associated with a first application associated with the respective first parameter of the first instruction and to vary the first facet from a first size to a second size, the second size occupying substantially an entire viewable portion of the graphic user interface, and pass the first instruction and respective first parameter for processing by the first application associated with the facet, and upon subsequent receipt of natural language speech input comprising a second instruction, the processor is configured to cause the focus to shift away from the facet associated with the first application associated with the first parameter and return the first facet to the first size, and wherein, upon receipt of natural language speech input comprising the first instruction and a second parameter, the processor is configured to cause the focus to shift to a second facet associated with a second application associated with the second parameter of the first instruction, to vary the second facet from a third size to the second size, and upon subsequent receipt of natural language speech input comprising the second instruction, to cause the focus to shift away from the second facet associated with the second parameter and to return the second facet to the third size.
1. A computing system, comprising: a processor; a memory configured to store instructions for controlling the processor; a user interface device configured to receive natural language speech input; a graphic user interface comprising an array of facets arranged in a tiled configuration, at least one of the facets being associated with at least one application; and a natural language speech parser configured to parse the received natural language speech input according to instruction grammars to determine instructions and respective parameters of the determined instructions, wherein, upon receipt of natural language speech input comprising a first instruction and a first parameter of the first instruction, the processor is configured to cause a focus to shift to a facet associated with a first application associated with the respective first parameter of the first instruction and to vary the first facet from a first size to a second size, the second size occupying substantially an entire viewable portion of the graphic user interface, and pass the first instruction and respective first parameter for processing by the first application associated with the facet, and upon subsequent receipt of natural language speech input comprising a second instruction, the processor is configured to cause the focus to shift away from the facet associated with the first application associated with the first parameter and return the first facet to the first size, and wherein, upon receipt of natural language speech input comprising the first instruction and a second parameter, the processor is configured to cause the focus to shift to a second facet associated with a second application associated with the second parameter of the first instruction, to vary the second facet from a third size to the second size, and upon subsequent receipt of natural language speech input comprising the second instruction, to cause the focus to shift away from the second facet associated with the second parameter and to return the second facet to the third size. 3. The system of claim 1 , wherein the second instruction comprises an instruction adapted to close at least one of the first application and the second application.