For all the doubts that exist for how successful Nintendo's "DS" will be, I would have to say that all those same things apply to Sony's PSP. The concept photo's for the PSP look quite nice, but when you step beyond that, it's essentially a Playstation 2 or near-Playstation 2 clone that has been miniaturized and will be resold at year 2001 prices ($300) or higher in late 2004 or 2005. Rumor has it that Sony is not willing to have the PSP follow in the PS2's footsteps in terms of not being profitable from a hardware sale standpoint. I think there is also a legitimate question as to whether the probable price/graphical power are overkill for something with a 4.5" screen. Perhaps the USB port that has been mentioned will allow connectivity for playback on a computer monitor...Sony VAIO anyone?
Essentially Sony is looking for the general public to repurchase an old product in a new form. Is that really very different from Nintendo's portable gaming strategy? Nope. The only real difference is that Sony also owns large lucrative concerns in other areas of electronics and entertainment, and hopes to graft those on top of Nintendo's tried and true portable gaming strategies. That's always been their leverage, not that they have better ideas or "vision" about gaming products. I think portraying Nintendo as being in the dark about these things is pretty misleading.