A
convincing twin of Darth Vader stalks the beige cubicles of a Silicon
Valley office, complete with ominous black mask, cape and light saber.
But this is no chintzy Halloween costume. It's a prototype, years in
the making, of a toy that incorporates brain wave-reading technology.
Read - "The rest of the story" - http://apnews.myway.com/article/20070429/D8OQI2100.html