I got 2 of those emails this morning for two of the lines on my account. Shows the new installment plan through Next.
I don't think AT&T completing the Next agreement has anything to do with receiving the phones. Two years ago when I added a line to my account with Next, the installment plan date began when the phone was preordered, not when it was received or activated.
I got these too, over night. I mean, I hope it means they are getting ready to arrive on Friday- it kind of stinks the ability to easily cancel disappears, and the installment starts the clock on the date, if Best Buy isn't going to deliver when they said. So that means my account and line would be held in limbo until they get around to sending and I wouldn't be able to just cancel if they don't show on Friday? The lady at att said at this point I have to wait to get them and then return them if I didn't want them now.