3. The method of claim 2 , wherein the visual indication of a first key of the virtual keyboard of a subsequent candidate input character of a first set of predicted input characters having a higher predictive rank provides a greater emphasis than the visual indication of a second key of the virtual keyboard of a subsequent candidate input character of a second set of predicted input characters having a lower predictive rank.
6. The method of claim 3 , wherein the first key of the virtual keyboard is displayed using a first type of visual emphasis while the second key of the virtual keyboard is displayed using a second type of visual emphasis different than the first type of visual emphasis.