My 42mm sport white band ordered at 12:03 got its tracking number at 3:24 (central time) from UPS today. Apple's system hasn't changed yet, still says Processing. If you haven't setup a UPS My Choice account, do it. I set mine up about an hour before the notice came through.
I'm able to see the tracking #, the location its shipping from (Tennessee), the date its going to ship and the expected delivery date. You have to dig around a bit to get all of that. Mine is UPS Next Day Air Saver- probably the same for everyone.