But a video recently uploaded in YouTube (http://www.youtube.com/watch?v=uQ2DCKLHaQs&t=461) says otherwise. In the video, he mentioned that he left the company due to 'disagreements with someone brought on to be CEO'.
So which is it really? Maybe we will hear Jed McCaleb's side of the story in full in the near future. But for now Jed is probably busy on a new 'secret bitcoin project' (http://alphatesters.secretbitcoinproject.com/).