Well, so did [Guy Dupont], so he created a USB keypad with T9 predictive text built-in to turn typing into a one-handed affair. Video after the break. T9 was the first predictive text technology ...

Predictive Text Entry, (also know by the most popular type, T9,) allows you to enter text by pressing only one key per letter on a keypad where multiple letters share keys. As you enter a word ...