conventional keypad. - I have thought about how people send a text message in quick through cell phones, thus I designed to change keypad which is arranged in the alphabetical order.I placed all the vowels in one column at the last right, and re-coupled other consonant to minimized to press while messaging.
An example, when I need to text like" BYE", I have to press buttons 7 times on the conventional phone but I need to press buttons only 4 times on my concept.