23. The mobile device of claim 22 , wherein at least one of the dual-mode toggle keys are configured to input a third text-entry character when a third portion of the key is pressed.
23. The mobile device of claim 22 , wherein at least one of the dual-mode toggle keys are configured to input a third text-entry character when a third portion of the key is pressed. 27. The mobile device of claim 23 , wherein when the mobile device is in the telephony mode, the telephony character is input by engaging either the first switch or the second switch.