Probably tomorrow when they ship it next day air. Mine is the same way. Did you order yours early? I ordered mine on the 8th, and I figure they had so many already in the US, and I'm getting one of them. Everyone with tracking codes ordered theirs later and they're coming from the China supply. That's my guess.
You have no reason to complain until Friday. Period. Until you don't get your phone on Friday, Apple hasn't let you down. Just chill. That's what I'm doing.