Today, much of the tech press is interested in speculating on the iPhone’s data plan. Here’s something new to add to the conversation.

Last week, when a Cingular business sales rep told me that the date for release was June 11th, she also told me that the data plan would be $30 bucks. I have less reason to believe the date, but the pricing seems like something she knew as a fact. $30. Such an exact number.