Total dystopian thought, but I wonder if this could ever be used to extract info people unwillingly, as in some interrogation scenario. I mean, you have a lot more control over what you say than what you think.
Not to say that this device was probably trained on the person a lot before they could reach that accuracy. A "information extraction" device would have to be trained on it's victim first, but why would they play along with the training?
Maybe I'm wrong, but I think most people have control over what they consciously think, at least it works like that for me.
So if James Bond gets captured, all he has to do is to not imagine writing the information, he can think it all he wants.