10. The keyboard of claim 9 , wherein the first vowel key is positioned in a row below the first set of keys and the second vowel key is positioned in a row above the first set of keys; or the first and second vowel keys are positioned in the same row below the first set of keys.
12. The keyboard of claim 10 , wherein the first vowel key is positioned in a row with the additional set of keys, and the additional set of keys includes at least a shift key, a space key, and a return key.