On a CNET blog posting, the author is claiming to have obtained the exact release of the iPhone from AT&T (former Cingular) sales reps.

Now Cingular is confirming that the release date will be June 11. A customer service manager at Cingular (we called 800-947-5096 and were transferred to sales) gave us that date late Thursday, but, alas, said he didn't have any additional information beyond that.

June 11 is the day of the World Wide Developers Conference (WWDC) opening as noticed by the blogger. However, the sales rep could have given this date based on that fact.

Apple's official words regarding the release date of the iPhone are June 2007 for the U.S.A., late 2007 for Europe and 2008 for Asia. AT&T hasn't officially made any more precise release date announcement yet.