Apple has notified customers who were among the first to pre-order an iPhone 4 that they can expect to receive the device by June 24, which is the official on-sale date for iPhone 4 in the U.S., reports “InformationWeek” (http://macosg.me/2/es).

The company sent out official Shipment Notification e-mails, along with Federal Express tracking information, to those customers over the weekend. Fed Ex tracking documents show that the devices are being shipped directly from a facility in Lantau Island, Hong Kong.

“We are pleased to inform you that your iPhone 4 has shipped,” the e-mail states. “Please check below for your confirmed delivery date. If you ordered more than one item, they may ship separately.”