It's coming - nay - it is already upon us. Exhibit A - THIS article on the mind-controlled Nintendo Wii, coming in 2010.
Doesn't anyone else see this for what it is? Sure, it's designed for you to control video games with your outgoing thoughts... but it's really just opening a door for the machines to gain control of our thoughts by sending signals IN! Resistance is futile! You will be assimilated!