Another advantage is that a mistake on a keyboard is only a typo, whereas a fat finger on a touch screen can and will trigger almost anything. In spite of doing EVERYTHING to turn of "gestures", they persist, and my phones screen is an inadvertant landmine game where I always loose. Then there is the total impossibility of turning of the gyros and they overlayed the screen rotate on one edge of the keypad. Presumably this is partialy due to de~guggling the phone, but who knows anymore.