Punch Jump's week in review. Stories include:
PS3 sales were boosted by the launch of Grand Theft Auto IV. Sony cited recent sales data from retailer GameStop Corp.
Microsoft this week price cut Xbox 360 hardware in Asia. Hong Kong, South Korea, Singapore, and Taiwan held discounts between five and 20 percent.
Nintendo this week released Mario Kart Wii to U.S. retail. The SKU includes the Wii Wheel for wireless racing action.