There is a big difference here in that app post contents will (hopefully) appear on mobile devices with all of their content visible and intact. Today when an

There is a big difference here in that app post contents will (hopefully) appear on mobile devices with all of their content visible and intact. Today when an app makes a post, the "description" (one of the optional post parameters) is left out when the post is viewed on a mobile device, and if there is an image it will get cropped to be square. The "description" is where your app really delivers most of its content for the post, and leaving it out today on mobile makes the posts appear almost nonsensical. Plus there is an open bug right now ( https://developers.facebook.com/bugs/151722701585098 https://developers.facebook.com/bugs/151722701585098 ) that has rendered app posts almost completely invisible on mobile devices since about Sept 25...I am guessing they will have to fix that bug as part of this new commitment to mobile. I know for one of my apps this bug has cut our traffic (and ad revenue) by 50%.