The document discusses a smart note taker product that allows users to write notes in the air that are then digitally stored. It works by using a digital pen connected to a processor that senses hand motions and shapes using a database to recognize words. Notes can then be viewed on a display, shared digitally, or printed. Current products mentioned include mobile note takers that work with smartphones and PC note takers that capture and display writing in real time on a computer. Advantages include assistance for blind users and note-taking during phone calls or presentations.