I don't know if this mean anything, but I'm still stuck on prepared for shipment, but just received a email from at&t saying
"Thank you for choosing at&t and iphone" and all this stuff about reviewing my account and stuff
Our phones must be in the same shipment. My status changed last Friday morning, my contract renewed itself yesterday, Apple charged my card and I got the same seemingly pointless email from AT&T.
I'm glad the phones are (possibly) shipping sooner than expected, but I wish apple wouldn't change the status to PFS so quickly. In my mind, when it's prepared for shipping, there is a stamp on the darn box and it's on a dock waiting for Fedex. Like a kid on Christmas morning, I just want my stuff!