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Tech tends to move forward without looking back, but that doesn't mean new is always better. One feature that dominated mobile phones in the late '90s had made a comeback thanks to Apple, and you can take advantage of it on your iPhone when making calls. Text on 9 keys, known better as T9, is a predictive text technology that makes texting possible on old-fashioned phones with physical keypads. On these cell phones, letters occupy digits 2 through 9, with the 1 key used for punctuation, the number sign or pound sign key (#) as shift, and the star key (*) used as a space. Since you had to press the same number multiple times to get the second, third, or fourth letter on the key, drafting text messages on a dumbphone was and continues to be slow. For example, you would press 4-2-3-4-33-8-#-44-2-222-55-7777 to spell "gadget hacks" in a text field. With touchscreen keyboards on smartphones, you can type text messages with blazing speed, so a T9 keypad doesn't make any sense. Don't Miss:...more