Radio Shack started discounting the iPhone unusually early this weekend with a new, if short, promo campaign. Anyone who buys an AT&T-bound iPhone 4 or 4S from Sunday through December 17 will get a $30 immediate discount, lowering the contract price to as little as $70 for an 8GB iPhone 4 or $170 for an iPhone 4S. With trade-ins, the difference is just enough to make the iPhone 4 or 16GB iPhone 4S free and actually carry store credit left over, depending on the trade-in.
