just thought people might like to know that as someone who got their iphone 4 preorder in at about 6 30 pdt from Apple, I went back later that day and changed my shipping address to one different from my billing. I called Apple today to figure out if that is an issue and while at first the lady said this might invalidate my order, since my payment was already authorized through the change didn't matter and I will indeed have my iphone on June 24th, at an address that is not my billing address.