In a statement to The Verge on the future of pre-loaded apps, AT&T today revealed that it is planning to offer FaceTime over cellular to all of its customers on any data plan by the end of 2013.For video chat apps that come pre-loaded on devices, we currently give all OS and device makers the ability for those apps to work over cellular for our customers who are on Mobile Share or Tiered plans. Apple, Samsung and BlackBerry have chosen to enable this for their pre-loaded video chat apps. And by mid-June, we’ll have enabled those apps over cellular for our unlimited plan customers who have LTE devices from those three manufacturers. Throughout the second half of this year, we plan to e