Side by side and interlace options work with regular 3D displays (if that display supports it) so they could make it work if they wanted

I hope we do get that feature, it'd be pretty cool

that's the part i was questioning.  i'll be honest, i was kind of hoping you had a specific answer to that (like a link) cause i haven't heard one way or the other.  i tried looking up the 3DS format and all i could find was .MPO which i couldn't figure out what that actually meant.

I can say with a fair degree of certainty (as much without actual tests and confirmation) that red/cyan 3D video (single channel) is not compatible with the 3DS, which uses two separate non-interlaced full RGB video signals to produce its 3D effect.

And before anyone says it's "compatible" in that you could still watch those videos with a 3D effect by wearing red/cyan lens glasses with your 3DS, that pretty much defeats the purpose of having a built in parallax barrier stereoscopic 3D display.

There are however, cameras that shoot in two channel mode that should be compatible. Ironically, Sony makes a 3D version of their Bloggie video cameras that should be compatible.

.MPO format is a still frame image format. 3D video is compatible with standard MP4/H.264 format/compression.

If someone wanted to re-upload their videos shot stereoscopically without being converted to anaglyph 3D they'd be properly viewable on a 3D display.

But for all practical purposes, I'll say that the 3D video content on the 3DS will largely be from whatever video service Nintendo adds to their store.

./hangs head in shame  

./bows to your superior knowledge

Go here: http://www.youtube.com/select_3d_mode

Youtube does have a 3D mode that 3D screens can play (if supported) - - - If Nintendo wanted it as a feature, they could implement it

And if not Youtube, then some other source of 3D content! :D

didn't nintendo already explicitly state that they have no intentions for working with "garage developers"?

The only format that is potentially compatible is the "side by side" mode and that's only if the side by side format isn't flattened into a single frame. Otherwise, the Sharp display would have to display half of each double frame (the L & R views) twice every time the display refreshes. Possible, but hardly practical. 

Generally side by side formats are for viewing through a 3D viewer, just like the one packed with Metal Gear Acid 2 (the foldable cardboard "Solid Eye" with plastic lenses). They are not made for parallax barrier displays. 

None of the anaglyph modes would work without a resultant color scrambled picture and the interlaced method of displaying two signals simultaneously with alternating fields is designed for shutter glasses, not parallax barrier displays. The resultant image would be a flickering image as each frame on the 3DS would include odd or even fields on one channel at a time (L or R channel).

If anyone actually understands how the Sharp parallax barrier display works as opposed to shutter glasses and anaglyph signals, they'd probably come to the same conclusion. 

This is the most promising feature for me. I've lost count of the times I've wanted to look something up on the PS3 browser whilst playing a game, but of course, you can't do that there. So I have to use my laptop or my ipod.

3DS relaunch is just a couple  weeks away

can't wait for some 3DSware