So I am somewhat glad to hear that they made some phone calls today...though of coure I am sad that I wasn't one of them. But, following along with the in-depth speculation so elegantly laid out by seanshah, I have an idea for tomorrow...
So they called people today near closing time instead of sending emails. Last week, people were getting emails in the morning telling them to call in, which means the adcom has to sit around and wait for the admitted waitlister to call them back. I think that they might be sending out some e-mails tomorrow morning. Maybe they made a few calls late today because they couldn't email them and wait for them to call in.
Since we are expecting a large movement, and assuming this large movement does happen today through tomorrow or Friday, I bet they called a few of the people to get some out of the way and are gonna send out a bunch of emails in the morning and expect many call backs throughout the day tomorrow.
Just my guess...but it is also based on my extreme hope that this is the case and we all get an email at 9AM and can call them tomorrow
Good luck this week everyone!