Facebook has begun testing a new feature in its iOS app that pops up relevant information when you check in or attach a song, TV show, movie, or friend to a status update. If you check in at a Cafe Grumpy, for example, Facebook might show friends who have also been there, photos of some lattes, or photos of you and the friends youve checked in with. If you post that youre listening to a song or watching Breaking Bad, Facebook might show friends who have recently done the same. \These cards can help you discover information about where you are or what to do next, or inspire conversations with your friends around you,\ said a Facebook spokesperson.