This is the concept behind the Elastic
Phone, created by
Sung-Ching. The handset uses a flexible keypad with
touch feedback and based on OLED technology. You can expand this keypad section and add more functions. More images and info after the break...
For example you can convert the keyboard to control the game, controlling the media and some regular keys for messaging. The keys can be moved and they will eventually provide much needed feedback that is lacking in the habit of touch screens, despite attempts to provide a feeling of physical keyboard.