The designer of this Foldup Keyboard is probably inspired by the traditional Chinese fan that you might have seen somewhere in Chinatown. Unlike the Flexible silicone keyboard design, Foldup Keyboard is not roll-able but it will provide you rigidity for typing convenient.
Every time you want to use the keyboard, you’ll have to pull it or stretch it vertically. Once you’ve pulled the folded keyboard, it will reveal the hidden touch-keys with no tactile response (I assumed) when you type your words.
But I will have no problem on the tactile response and I will really love to get one because of my mobile lifestyle. Just one problem though, no idea when this conceptual keyboard could be produced as a real stuff.