John Koller, yesterday.

While the rest of the world is left pondering just what Nintendo can do with the freshly-announced 3DS, Sony's John Koller has wasted no time is casting aspersions on the machine's chances.

"I think it remains to be seen where Nintendo goes with 3D on a portable," said Koller, who is employed as director of hardware and marketing at Sony Computer Entertainment America.

"Having been in the portable space for quite awhile, I think it's an interesting move but one I'd like to see where they go from a demographic standpoint. 8 and 9 year-olds playing 3D is a little bit of a stretch given where some of our research is right now," he went on to add.

This kind of trash-talking is hardly new, but Koller does have a point – as our very own Sean Aaron found when he tested the 3D capabilities of the current DSi hardware, using this kind of tech in a portable can lead to some discomfort for the player. Time will tell if Nintendo's gamble has paid off.