I had the same question. I created a game that I was about to release that uses the playground API to create images based on a description that I feed it in the game. The phone created the image, and allowed the user to go in and customize it to their liking...even adding their own avatar. Now, the user has to open each image in playground to get it to create. I create 81 images per level in the background and as needed...it was clever and now worthless. Why would they remove something that worked like that?