We've heard that a number of carriers will be delaying the launch of the Galaxy S III, and now AT&T has joined the ranks. We just received a statement from the carrier noting that "manufacturer supply contraints" of the Galaxy S III "have caused a delay to expected pre-order shipments." Now, some of the buyers who expected to get their phone today will end up receiving their device "no later than Monday, June 25th." If you're one of the customers that is affected by this change, AT&T will be emailing you and sending an SMS to let you know when your phone will arrive. We also heard that some customers should still receive their phones today — so if you placed a pre-order, keep your eye out for that email or SMS. As for "future pre-orders," AT&T believes it'll take about 10 business days to fill an order.

The full statement we received from AT&T is below:

Manufacturer supply constraints of the 4G LTE Samsung Galaxy S III have caused a delay to expected pre-order shipments. Customers who were previously quoted a delivery date of June 21st should now expect their device to arrive no later than Monday, June 25th. We currently estimate future pre-orders to arrive within 10 business days based on available supply. Impacted customers will receive both an SMS and email notifying them of this change.