I agree that the 3DS camera is very nearly useless... but (to some degree) that depends on your expectations and what you want to accomplish.
You know, I took my 3DS with me to Legoland today with my daughter, and we were taking a bunch of pictures and video. The pictures came out fine, not fantastic, but alright with good 3D effects if the subject of the photo was less than 10 feet away.
But the video was horrible. Really, really horrible. Granted, it was sunny, and outdoors, but I filmed the entirety of this lego fairytale boat ride and just viewed the footage after we got home. Every time a lego sculpture came into view the 3D hurt my eyes. A lot! With horrible and extreme ghosting, all the time.
In fact, it gave my my first 3D headache since getting my 3DS on launch day, and I'm a guy who plays a lot of 3DS, with the 3D turned up all the way, all the time!