|1||2 acb||3 edj|
|4 ihg||5 olk||6 nmx|
|7 spwq||8 tuv||9 rfyz|
Based on Robert Edward Lewand’s Relative Frequencies of Letters in General English Plain text. E, T, A, I, N, O, S, and R are all available in 1 tap and on separate keys.
Of course, the letters do not all map to the usual digit, so spelled phone numbers (1-800-4-CHEESE) won’t work. Here is a backward-compatible version:
|1||2 acb||3 edf|
|4 ihg||5 lkj||6 nom|
|7 srpq||8 tuv||9 ywxz|
This promotes E, I, N, and S to 1 tap, but keeps N and O, and S and R on shared keys.
1 comment on SMS Keypad
1. Mom says:
Lenny, on the backward-compatible version you have a typo – “j” in place of “g” (digit 4).
I do not think version 1 is viable, but this one is a great idea!
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