As exciting as this technology seems, there are still quite a few important limits.
The fact that each user has to go through training sessions to record brain waves and match them to particular commands is expected but a barrier to adoption for most people. Unless an application solves a real need and the accuracy of the device is really good, I cannot imagine people spending time training a brain sensor.
When building my prototype using mental commands, I realised that there was a bit of a delay between the moment I started thinking about a particular thought and the moment I could see the feedback in my program.
... read the whole story at medium.com.