Es un método experimental de IBM para introducir texto escrito a mano a "gran velocidad". Hay un video demostrativo:
What is Shorthand-Aided Rapid Keyboarding?
Shorthand-Aided Rapid Keyboarding is an advanced pen-based text input method for mobile devices. It combines novel pattern recognition technology with a stylus keyboard. A new user may trace the letters on the keyboard to enter a word. Over time one may remember some or parts of the patterns and speed up the text writing.