I checked my status this morning via the app and noted that my 64GB SG has been marked as shipped with a UPS label created. The billing section also lists my IMEI. No e-mails or texts with further info have been sent since my order was confirmed.
If past experience is any indicator, this UPS label will sit this way until the early morning hours on Friday. There were larger numbers of people (myself included) who saw no movement at all on the tracking on Thursday only to awake on Friday morning and see that the phone had left Louisville, made it here, and was out for delivery in short order. So my advice is not to panic. If you've got a label and an IMEI at this point, you should be good to go for Friday.