i was wondering if the 3ds infrared emitter emits any signals when you press buttons or the d pad while its in the camera mode, cause if it did we could design an emulator on our pc where it has a split screen ,one side would be a fraction of a second behind the other one ,maybe like 1/8 or 1/16 or 1/32 of a second ,then you could map the controller inputs for the emulator to an infrared receiver connected to your pc ,then you just watch it on you monitor through the 3ds cameras ,similar to how they have youtube videos that are split screen for viewing in 3d , if there is nothing emitted from the infrared on the 3ds when the camera app is on, which is most likely the case i would assume,then you would have to use another method to control it