Just to add another datapoint, they ARE still calling. Got my acceptance about 30 minutes ago, located in Boston. Was also given quite a generous scholarship package, which I almost fainted after hearing. After sitting next to my friend at work who got accepted 5 hours prior, I basically gave up - got the call a few minutes after that. I feel like I felt the lowest lows and highest highs of this whole process within such a short period of time...WOW.
Good luck to everyone!