Sony of America President Jack Tretton isn't pulling any punches.

 In an interview with Fortune magazine, Tretton dismisses Nintendo's 3DS as a great babysitting tool that offers no competition to Sony's PSP. No self-respecting twenty-something is going to be sitting on an airplane with one of those, he said. He's too old for that.

Tretton also took shots at the Nintendo Wii amnd Microsoft's Xbox 360. Motion gaming is cute, but if I can only wave my arms six inches, how does this really feel like I'm doing true accurate motion gaming?, he said. Sony, too, offers motion controls on its Playstation 3, via the Move.

It has been a week of highly-quotable statements for the Sony president. In an interview with Bloomberg earlier this week, Tretton said that the ongoing crisis in Japan may affect Sony's release of its next handheld, NGP. It may be the straw that says 'maybe we get to just one market by the end of the year, he said, noting that the disaster had forced Sony to close a number of factories.

But in a statement, a Sony spokesperson refuted Tretton's claims, claiming that Sony NGP plans were progressing as expected and that the company had never given a firm release for the device in any region.