John Voorhees, reporting for MacStories:
We now have a better idea of the reasons behind the Steam Link rejection thanks to an email message from Phil Schiller, Apple’s Senior Vice President of Worldwide Marketing, to a MacStories reader, the authenticity of which we have verified.
According to Phil Schiller’s reply, the Steam Link app violated “a number of guidelines around user generated content, in-app purchases, content codes, etc.” The good news is that apple is continuing to work with Valve to fix these issues and hopefully the app will be available soon.