Apple and its authorized retailers and carriers look set to cleariPhone stock as the iPhone 5 approaches with older iPhones going for almost FREE!. According to Engadget, expect price drops from AT&T, Verizon, Target and other retailers on both the iPhone 4 and iPhone 3GS come tomorrow (July 31). As Electronista points out, “separate scoops have both shown the retailer dropping prices by at least $30 on iPhones depending on the carrier. Verizon iPhones will get the steepest drops, which in Phone Arena’s leak saw prices going down to $150 and $250 for the 16GB and 32GB iPhone 4 models respectively. Engadget says “According to a pair of trusty tipsters, Radio Shack is prepping to cut the cost of AT&T’s 16GB iPhone 4 to $169.99, with a two-year contract, from $199.99. The 32GB version will likewise take a $30 plunge at the Shack, ringing in at $269.99, and the price of the 8GB 3GS will drop to $19.99” – we’re talking almost a FREE iPhone!