Believes Sony may have a 'fundamental concept problem'.

psp go - Fils-Aime asks: what's the benefit of...

Sony's PSPgo hasn't been greeted with the warmest of welcomes, and now Nintendo of America president Reggie Fils-Aime has jumped on the new handheld's back.

Fills told The Washington Post he believes the device may have a "fundamental concept problem in terms of 'Who's it for?' and 'What's the benefit?'"

He added: "I have the utmost respect for all our competitors, but it's interesting to try and answer the consumer question of 'What's in it for me?' in that product."

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