It's not better yet. The point of the research was the sensory input back to the brain. We've had the ability to manipulate computers with our brains for a long

It's not better yet. The point of the research was the sensory input back to the brain. We've had the ability to manipulate computers with our brains for a long time, but the problem with output-only is that you'd try to grab a coffee cup and break it, because you'd have no idea how hard you were grasping it. Tactile sensation is a huge part of motor control, and one that we take for granted. Try, for instance, closing your eyes and touching your nose. Without sensory feedback, you can't do it.