We know that Phil Harrison, head of Sony Worldwide Studios, is leaving the company but GamesIndustry is reporting that Phil is headed over to Atari to work on casual gaming for multiple outlets. It seems Harrison loves him some casual gaming and was very disappointed with Sony’s failure to grab that part of the market. He hasn’t officially confirmed the move but expect more news soon.

Harrison was a driving force for the PlayStation and launched the EyeToy, SingStar, and PlayStation Home. Clearly this move would be highly strategic for Harrison and Atari — you don’t move from success unless something is gravely wrong at home and the suitor is offering lots of cash.

Harrison to leave Sony – join Atari? [GamesIndustry]