It's not a 3DS Lite (yet), but Nintendo is preparing a peripheral that will add a second circle pad to the Nintendo 3DS

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Courtesy of Twitter usercomes a scan from Famitsu, confirming reports of Nintendo preparing a Circle Pad peripheral.The device, which is technically being called a "Expansion Slide Pad" in Japan, clips onto the entire system, like a cradle, adding a second circle pad to the right of the 3DS. The cradle will then add a centimeter or two of thickness in all directions. It's unknown if the "expansion" will offer any other features. Famitsu's story lists the release date and price as "TBA."What's most interesting is the report and photos of the device are being run alongside the announcement of Monster Hunter 3G . It's still unknown if the expansion is meant mostly for 3G, or even if it was developed entirely with 3G in mind. All questions for the future, perhaps.Nintendo is set to hold a press conference early next week - perhaps the device will make its formal debut there?