@vizunary, WS and WSC stands for Wonderswan and Wonderswan Color
I agree... hardware sales are a success. But as Biggerboat already suggested, that's not the issue... this is a games business and it's all about the games. I can only name a few million sellers on the PSP as opposed to those systems it has beaten in the list you mentioned.
Sony introduced the PSP not just to rival the GBA and DS, it was supposed to rival the Ipod as well. Considering the success of the Ipod, it failed to do so miserably.


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and Wii
