Nice post Dreal. If Nintendo did a deal even remotely like the one you described, then it would surely bolster sales. By how much, who knows? But I seriously doubt it would launch the GC anywhere near the position of the PS2. What it could do though is reinforce Nintendo's brand name, and give them a better reputation for the next generation of consoles. But Nintendo would also have to follow that up by releasing the console around the same time as the PS3/Xbox 2, with some amazing, exclusive launch titles, along with a wealth of good third party games.
I would disagree with the argument of everyone who wants a GBA would have already got one. Is that why the PS2 is still selling like hot cakes? Oh, and also the GBA

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