He left in july 2009 I believe.  Cant pull up dead link to the blog post, cache wont work, but here is the link to the google search <a href="http://www.google.com/search?hl=en&#38;q=mike+matas+leaves+apple&#38;aq=f&#38;oq=&#38;aqi=" rel="nofollow">http://www.google.com/search?hl=en&#38;q=mike+matas+leaves+a...</a>