And I know I am (not) being paranoid, but imagine how excited NSAs of the world all will be! A new kind of keyboard, that has capabilities to understand and predict what the user will write? This just looks like something Facebook could also be interested into (if you think at their "I keep what you wrote and deleted before even publishing" attitude).
This kind of tool really needs to be open source and open hardware. Otherwise they better stay far away from me.