Comment by mellinoe
2 years ago
Even most technically-minded people still use QWERTY on full-size computer keyboards despite it being a terrible layout for a number of reasons. I really doubt a new, nonstandard keyboard would get much if any traction on phones.
T9 was fine for typing and probably hundreds of millions of people used it.
It only worked because it had to, given phones just had keypads back then. As soon as qwerty-with-your-thumbs was available, everyone abandoned T9 and never looked back.