One of the comments on the site, from user Ronmovies, says it all:

  I generally use iChat and Skype for chatting, but I was 
  curious and checked out Airtime. The first thing that 
  greeted me was a Log In with Facebook form that warned that 
  this app would have access to: "Your profile info: 
  description, activities, birthday, education history,
  hometown, interests, likes, location, religious and 
  political views and work history." In addition, "This app 
  may post on your behalf, including videos you watched, 
  videos you posted and more." Why on earth would I want to 
  give them all that power, including the unspecified "and 
  more" when chat platforms like Skype aren't nearly as 
  freakishly invasive?

Chatroulette succeeded because of its subversive texture and flavor, not in spite of it. Airtime, meanwhile, sounds about as subversive as the John Birch Society. If someone like Fanning doesn't understand that, then I don't think we'll see any genuinely interesting startups from the "Facebook mafia."