Nintendo today announced that the Nintendo DSi and Nintendo DSi XL will both be getting a price drop on September 12th. The Nintendo DSi’s suggested retail price will be $149.99 and the Nintendo DSi XL will be priced at $169.99. This means you will get to save some pennies so you can also get Golden Sun: Dark Dawn which Nintendo also announced will be launching on November 29th. Now if only we knew when the Nintendo 3DS is launching…