Clues of iPhone savings’s reader Derek went to his local Cingular dealer to pick up a Blackberry Pearl last week. Upon examining his receipt, he found that it said, “iPhone 2 year agreement savings: $150.00”.

On one hand, it looks like the folks at Cingular need to re-program their registers. Secondly, we can speculate that this indicates a discounted 2 year plan on iPhones. That could take some of the sting out of $499US.