26. A computer-implemented method for receiving text-input on a touch-sensitive display device, comprising: presenting one of a pair of alternately displayed key planes of a virtual keyboard on the touch-sensitive display device, each of the pair of alternate key planes including a partial set of phonetic symbols from a phonetic alphabet, a first key plane of the key plane pair including a set of initial phonetic symbols of the phonetic alphabet, and a second key plane of the key plane pair including a set of final phonetic symbols of the phonetic alphabet; and receiving a sequence of symbol input from the pair of alternate key planes for text entry on the touch-sensitive display device.
33. The method of claim 26 , wherein the second key plane displays a predetermined set of final phonetic symbols, independent of the initial phonetic symbol selected in the first key plane.