I was wondering about that myself. I ordered mine when I ordered my iPhone, but it has yet to ship from Apple. Says it will ship tomorrow and I just glad I did expedited shipping, so maybe I'll have them first part of next week at least.
Invisible Shield on the front and back already installed, now just need my black bumpers! LOL
My gf is getting her iPhone at the AT&T store today. They called to tell her it will be there today, but that they don't have any bumpers....it's fine, we don't want those, we want a more protective case anyways.