Great news, now all 3 major carriers in the United States are taking pre-orders through Best Buy. AT&T and Verizon already have opened up pre-ordering through their websites, T-Mobile has not done so yet, but now through Best Buy you can pre-order.
Prices for all 3 carriers are going for $199.99 on a 2-year contract agreement. Head on over to Best Buy and begin your pre-order.