"Talk to you soon," says the e-mail teaser, which was accompanied by a "hero shot" of the iPhone device itself on a black background.
"You'll be the first to hear the latest about iPhone— coming this June," Apple wrote. "That gives you just enough time to think of ways to break the news to your current phone."
The mail arrives just as Apple's component manufacturers are due to begin delivery of materials for the phone's initial manufacturing ramp over in Taiwan. Reports last month indicated that part makers, including the phone's printed circuit board manufacturer, were to begin delivery in "early April."
Last week, AT&T Wireless announced that it had received over a million inquiries for additional information from customers who had signed up to receive more information on iPhone through its own website.
Apple has yet to commit to a precise launch date, though the most recent anecdotal evidence has circled around June 11th.