Mitsubishi, makers of all things, period, is working in conjunction with Japanese cell phone manufacturer NTT DoCoMo to develop a cell phone that has a touch screen rather than actual keypad buttons. The advantage of this design is to allow the phone to easily utilize even more features with the touch screen that can change display and usage on the fly. The three buttons below the keypad touch screen are quick reference buttons that will change the display immediately. This phone is in the prototype phase right now, but expect some more information on this in the future.
You heard of touch screens now check out touch keys [PhoneyWorld]