One of the original inventors of T9 predictive text input for mobile phones, Cliff Kushler, has developed a new method for anything with a touchscreen by creating a swipe method where the user passes over each letter in the word and does not have to lift his fingers off the keyboard. The new method is aptly named Swype. I could see this being faster than T9, especially for larger touch screens but those with fat fingers and small touch screens will still have problems.