Yeah on looking at it more, it seems to be some sort of predictive text based keyboard:
CharaChorder is a new class of peripheral device which allows ordinary people to type faster than is physically possible on any keyboard.
Instead of the 1 dimensional buttons that keyboards use, CharaChorder switches detect motion in 3 dimensions so users have access to over 300 unique inputs without their fingers breaking contact with the device. What is far more powerful however, is that users can type entire words in a single motion by pressing all the letters of a word simultaneously. CharaChorder’s internal processor arranges the letters on-screen in real time faster than the human eye can perceive.
CharaChorder allows users to type individual characters like a keyboard or press all the letters in a word simultaneously and the internal processor will automatically arrange them on your screen in real time. This allows ordinary people to type faster than is physically possible on any keyboard.
The difference could be that it only uses characters you type/touch, which could make it more accurate? : /