Yesterday, at 5:56PM, I got an e-mail from T-Mobile with an update on my order, stating that I should be receiving my device on Friday. It said that another notification with a tracking number will be sent as soon as it ships - none yet.
I mentioned before, but just for FYI purposes:
Customer Type: New
Phone: iPhone 6+, 128GB, Space Grey
Order Date: 09/12/2014 at 06:45 AM PDT
Order status page still says "Order Placed" and robot lady still says "Backordered".
Hope this helps.
Wow does this make me nervous. My order is identical to yours except it was processed ~6:30am PST according to the online status page and I've got 3x 6+, 128GB, Space Grey instead of one. I *STILL* haven't heard squat from Tmobile or seen any status changes. I'm really losing hope here.