Urgh76 said:
wait, how would i go about getting music on it? :O
Power it down (right down, not just sleep) open up the SD card slot on the side. Pop out your 2GB SD card. Insert into computer. Copy your music files onto it. Put it back into your 3DS.
I haven't tried using a USB cable with a micro-usb port into the power input yet. So not sure if you can transfer files that way.
It has no trouble dealing with folders and the like (up to 8 levels deep, apparantly) and can handle 100 songs per folder.
Once you've got music on it, you can play the music to different visualizers. One of which is a tiny little "keep the ball up in the air game" (How the hell it's a "visualizer" I have no clue, but there it is..)