I doubt any move by Nintendo is necessary, minus for getting more high quality IPs out there on the Wii. Since it released, the Wii has dominated every year in sales, has become the most popular of the systems in mainstream media. Even if the sales and buzz of the Wii were to die off today, the residual momentum would carry it through 2011, into the next generation of consoles.
So no matter the viewpoint, Nintendo has locked down this generation with both their home console and their handheld
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