32. The system of claim 30 , where the processor is programmed to perform an additional operation comprising, prior to multiplying the sum of the computed squares by the frequency adjustment factor, adding a fixed increment to the sum.
32. The system of claim 30 , where the processor is programmed to perform an additional operation comprising, prior to multiplying the sum of the computed squares by the frequency adjustment factor, adding a fixed increment to the sum. 33. The system of claim 32 , where the fixed increment equals twice an average distance between adjacent characters locations upon the virtual keyboard.