If you were hoping to pick up a the 64 GB model of the HTC One, it looks like you'll need to grab it from AT&T. AT&T has posted a video promoting the HTC One on its official YouTube account, which clearly shows that the 64 GB model is exclusive to the carrier, while the 32 GB version is not. Since the One has no internal expansion slot for a microSD card, you are stuck with what you get, and if 32 GB is just too cramped for you, the AT&T model seems to be your only hope. That's unfortunate, as exclusive handset configurations in the smartphone market don't seem to help anyone byt the vendor who has the exclusive, consumers be damned. Check out the promo video after the break.