But there's more. "Additionally, the VP communicated the following to a group of managers ..." Your breath catches, your pulse races. You think, "LTE? Lower price? The return of unlimited data plans?"

But no: "Expect things to get really, really busy in the next 35-50 days, so prepare your teams accordingly." Oh.

The fact that this rumor has not merely a source but a high-level AT&T source, means "this particular rumor is worth paying attention to because BGR was one of the first sites to heavily push a September release for the iPhone 5," . "I don't suspect the site would backtrack on its previous reports unless it had a legitimate reason to ..."

The best kind of rumors are the ones grounded in facts.

will reveal the date for the iPhone 5 announcement on Monday, Aug. 29.