Downloadable computer software for contextual prediction in the fields of artificial intelligence and machine learning; downloadable artificial intelligence and intelligent inference software for contextual prediction in the fields of artificial intelligence and machine learning; downloadable natural language processing software; downloadable machine learning software; downloadable computer software for data entry; downloadable computer software for text entry; downloadable computer software for predictive/corrective text entry; downloadable computer software for data entry using touch-screens; downloadable computer software for gesture recognition; downloadable computer software for gesture-based data entry