These devices can be bought off the shelf and cost (?$200-300) and from what I understand provides EEG type signals that can be used from gaming to much more serious applications.
Has anyone had experience with this sort of device?
http://www.ted.com/talks/tan_le_a_he...rainwaves.html http://blog.gsmarena.com/emotiv-epoc...e-looking-for/ http://en.wikipedia.org/wiki/Emotiv_Systems
I find the potential here exciting but is it a con?