I mentioned that if you don't use T9 you can't perceived it's merits. Once you get used to it, you can't live without it.
I rather have Apple perfecting SIRI then spending their time on a T9 keypad.
You know, in Asia, people love to text, and I know many people, including family members, that mastered the T9 keypad. Guess what, they are not complaining nor miss the T9 with these new smartphones. Plus, there's this thing called search. Simply initiate spotlight, type in first few letters, and done.
I take my analogy on Linux people with command lines. To them, command lines are faster than interacting with a GUI.
If you like T9, good for you. But you are like that Linux programmer that want people to learn command lines. Apple prefers more intuitive ways. Pressing 2-6-2 for Bob is not intuitive. Searching for Bob, or asking Siri to call Bob, is.
If you really prefer T9, then maybe the iPhone is not for you. Sometimes you just have to find something that fits you, instead of claiming the phone maker not catering to consumers (you).