Sony Computer Entertainment announced the departure of its chief technology officer Shinichi Okamoto, effective immediately.
Officially, Sony has given no explanation for his resignation but says in a statement that Okamoto may still continue to work for SCE in some unspecified capacity.
Okamoto worked as the head of the broadband sector for the PlayStation 2 and has also been active in the development of the console's next generation operating system, aimed for use with the CELL microprocessor.
In contrast to the official statement, a number of unofficial game sites in Japan are discussing the news and are hinting at a new, non-Sony-related, venture Okamoto will likely announce.