Sometimes all that a person needs to successfully use a computer is less typing! WordPsychic is word prediction software that reduces the amount of typing required to enter text into any Windows-based program. It does this by predicting the word you are typing as you type. After entering each letter, a new list of predicted words is displayed. When you see the word you want in the prediction list (see the above image), just click on it or type the number in the upper right corner. Your word will be inserted into your sentence automatically. Using word prediction can reduce the amount of typing required to enter text in half.
More information: http://www.invotek.org/products/WordPsychic/