The OpenEEG project is about making plans and software for do-it-yourself EEG devices available for free (as in GPL). It is aimed toward amateurs who would like to experiment with EEG. However, if you are a pro in any of the fields of electronics, neurofeedback, software development etc., you are of course welcome to join the mailing-list and share your wisdom.

I've been interested in the Emotiv EPOC headset for a while; a $300 14-sensor EEG. It's intended for gaming, but it's quite high quality. There's a research SDK available for $750, but it's Windows-only and totally proprietary. I decided to hack it, and open the consumer headset up to development. Thanks to donations I got some hardware in hand this weekend.