P_Phone / mobile phone

This is pen type mobile phone.
As the Keypad in mobile phone has the high dependence on fingers, it is difficult to use the Keypad for one who has big fingers or the disability like arthritis.
The pen type has a many advantage.
Pen can deliver information quickly without any new studying because it is a tool which can use easily everybody.
P-Phone can call and send message.
The end point of mobile phone, there is sensor which is perceived your writing number and send message.