Full comments from Miyamoto/Iwata on 3DS video footage
Once again, this information comes from the latest Iwata Asks. Nintendo president Satoru Iwata, Shigeru Miyamoto, and Shigesato Itoi.
Miyamoto: But Iwata-san also wants to include 3D video in the future! (laughs)
Iwata: I think it will be fun if we’re able to include video recording capabilities with future updates.
Itoi: I have no idea, but when you take 3D photos and videos, is there some kind of capacity limit?
Iwata: An SD card goes in this slot.
Itoi: Oh, an SD card! Like two gigabytes?
Iwata: It comes with a 2-gigabyte card, but you can, for example, use a 32-gigabyte one as well.
Itoi: Oh, okay, I see. So you seriously can take as many as you want.
Iwata: Yes. Long videos, lots of photos, they’ll fit.