vanity-fairx answered Sunday July 19 2009, 5:17 pm: its on all cell phones.
T9™ is a technology built to help assist people typing on cellular telephones. It uses set word lists to try to predict what words people are trying to type, allowing them to easily and quickly move through words with minimal keystrokes. Because of the awkwardness of typing on a small keypad, T9™ was developed to help push texting technologies, which provide a not-inconsiderable source of income for cell phone providers.
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