As probably the only person around here who's used 3D on the PS3 and 3D on the 3DS extensivel (maybe the only person who's done either) I can tell you it's a pretty big difference. Those shaded 3D glasses you're going to be wearing to use 3D on consoles dulls the picture, and are especially noticeable and uncomfortable if you, like me, wear glasses already.

The 3DS is the most clear and crisp 3D I've ever seen, and there's zero image or color distortion. Obviously this requires you to somewhat center the image from your viewpoint, but I was able to hold it comfortably in numerous positions and get a zero-distortion picture. Whether Sony is happy about it or not, at the moment Nintendo has a technology that is better than their 3D technology, and cannot be used on 3D TVs because of the distortion from non-centered viewpoints.

It's too bad, but 3D with glasses is not a comparable experience, at the moment, to what the 3DS offers. It's not as comfortable, and it's not as effective.

Edit: As for people touting glasses-free TVs, those do not function. You have to be within 10 degrees of the center of the TV to get a clear picture on them, which obviously makes their use in a living room setting... well, nonexistent. Those will never take off under current technology used in them. They are trash.

But if you wait 10 years, you are going to get into proper glasses less TVs with a view angle superior to this 10 degrees you mentioned! 

@Naz: I agree to most of what you said, except for the 3D glasses over normal glasses bit.  But also,  the reports I've seen were impressed by the 3D capabilities of the 3DS while stating the effect was more subtle, didn't pop out as much as the glasses versions of it (whichever one of the lot it is).  Basically, the thing that impressed the most was the fact that it didn't require glasses, and that colors weren't diluted like with the glasses counterparts.  Not that the 3D was more impressive in itself.

Funny thing you mention popping out. There were some demoes where it absolutely did... too much in fact. The Resident Evil demo popped out so much it hurt your eyes. I'll tell you something the Crysis 2 devs told me though: Good 3D is depth, not protrusion. Protrusion is that cheap cheesy shit you got in the 90s where they threw crap at the screen to be gimmicky. Most 3DS games do 3D right. If you saw Avatar in 3D, for example, that's good 3D. Good 3D isn't constantly reminding you it's 3D. Rather, it uses it as a tool for extra immersion and realism as the depth of field added gives you more clarity.

The problem the 3DS faced in some of those reports is gaming press aren't movie press. They arent used to 3D yet, and they expect things thrown at the screen. They don't understand that nothing pulls you out of an experinece faster than random protrusion and the distortion and eyestrain it creates. So trust me on this; someone who's paid a lot of attention to 3D and its development as an enhancing entertainment device. The 3DS is no less capable in 3D than anything else, and it's a good thing that it's mostly been used for depth.

I was calling Nintendo's bashing of glasses arrogant.

Sigh @ Selnor.

You do realise that the PS3 will be able to display 3D on glasses-less TVs too, right?

As probably the only person around here who's used 3D on the PS3 and 3D on the 3DS extensivel (maybe the only person who's done either) I can tell you it's a pretty big difference. Those shaded 3D glasses you're going to be wearing to use 3D on consoles dulls the picture, and are especially noticeable and uncomfortable if you, like me, wear glasses already.

The 3DS is the most clear and crisp 3D I've ever seen, and there's zero image or color distortion. Obviously this requires you to somewhat center the image from your viewpoint, but I was able to hold it comfortably in numerous positions and get a zero-distortion picture. Whether Sony is happy about it or not, at the moment Nintendo has a technology that is better than their 3D technology, and cannot be used on 3D TVs because of the distortion from non-centered viewpoints.

It's too bad, but 3D with glasses is not a comparable experience, at the moment, to what the 3DS offers. It's not as comfortable, and it's not as effective.

Edit: As for people touting glasses-free TVs, those do not function. You have to be within 10 degrees of the center of the TV to get a clear picture on them, which obviously makes their use in a living room setting... well, nonexistent. Those will never take off under current technology used in them. They are trash.