I would also add to that list the Emotiv kit (http://www.emotiv.com http://www.emotiv.com), which allows "to create applications that can be controlled by your

I would also add to that list the Emotiv kit (http://www.emotiv.com http://www.emotiv.com), which allows "to create applications that can be controlled by your mind" by making use of the same type of technology that allows paralytics to control robotic arms. Actually, the technology alone is highly impressive, but that an SDK is available to anyone for $299 is nothing short of mind-boggling.