This is a bad idea, I believe. I don't think third parties would get a strong hold on the Wii with this, and would likely lose the PS3/360 crowd in the process. They'd go for both, but end of with neither.
I'm not sure there IS a good solution to the Wii, particularly for Western third parties. I think many are stuck, not able to reasonably transfer the games they make over to the Wii (many of which rely heavily on technology and graphics to appeal to consumer. Rely on them, mind you).
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