Facebook recently updated its Platform Policies forbidding cross-promotion from within Canvas apps on competing social networks. Some developers were worried that it would forbid social game developers cross-promoting their own iOS and Android apps or off-platform versions of their games, but that is apparently not the case.
“[We] don’t believe it’s appropriate to use our site to promote a competitive service whether through ads, platform or any other channel we make available to third-parties on Facebook.com,” said a Facebook spokesperson. “We’ve had this policy in place for our advertising platform for some time, and the recent update extended this to Canvas applications on Facebook.”
This update rather seems to target Google+ and ensuring apps aren’t promoting the platform on Facebook. It’s an important distinction, since Facebook’s social games ecosystem relies on cross-promotion both for cross-platform games and for each others’ games on Facebook.
