Upside down phone

Typing text messages in this manner is awkward, as the mobile is merely held pinched between the middle finger and the palm, while most of the handset extends unstably beyond the user's palm. Furthermore, the thumb's range of movement is restricted by the lower orientation of the keypad.

This design for a mobile phone comprises a single housing where the operating face is configured with the buttons of the keypad positioned above the LCD screen. This layout ensures that most of the handset rests in the palm of the hand for improved support and control.

In addition to the improved grip, the thumb rests in a comfortable position directly above the buttons of the keypad. The improved angle for the thumb makes it unnecessary to shift the mobile phone around in the hand while typing text. source:IOL Patent Document