Don't hold your hopes too high. Things like that aren't very effective. I've seen similar research done to allow people with mobility issues control things on a computer, but it looked pretty "rough". You won't have that fine-tuned movement like you have with a high precision gaming mouse. Most of that is due to the fact that you're putting sensors on the surface of your head, rather than in your brain, and just picking up generic signals that leak through.
Of course, with the adaptiveness of the human brain, you might be able to train yourself to use it effectively. I don't know.
