title: Authorise more than one Facebook app at a time
body: <p>I work for an organisation that is partnering with another group. Each of us will have a body of users logged into Facebook. What we want to do is to make it possible for a user who is signed in under my group's app id to see all his/her friends some of whom will also be logged in under that id, some of whom will be logged in under the partner org's app id.</p>
  
  <p>The idea we had in mind was that it might be possible to grant permissions on auth to both app ids in one go. Is that possible? If not, does anyone have any idea how we could share this kind of presence data without also sharing all other user details?</p>