Receipt hints at iPhone service discounts?

AT&T may already have put in place service discounts for the iPhone, according to a receipt from one new subscriber to the cell service. Upon switching to the American carrier, Derek Punsalan noticed that although he had ordered a BlackBerry Pearl to go with his plan, his receipt for the purchase also mentioned the unreleased Apple phone, suggesting that it would receive a $150 discount when paired with a two-year service plan.
While clearly unintentional, the glitch indicates advance readiness for the phone and revives the possibility that AT&T will offer discounts in spite of the fixed $499 and $599 prices determined by Apple. View the receipt after the jump.