Getting your PlayStation-certified gaming fix on just got 50 percent cheaper. Verizon's cut the price of the Sony Ericsson Xperia Play in half on its website, selling for $100 with contract only four months after being greeted with open arms. The price cut is a result of Big Red's "Back to School" promotion, though it's difficult to believe this one will come out the other end of the sale any costlier than this. Was this sudden reduction made to instigate a price war with AT&T now that it's