In the latest system update info for the 3DS family line of handheld consoles, Nintendo mentions that connecting the 3DS to an unauthorized device of any ki9nd from the moment of the update and onward will possible prevent playing with the console any longer! WoW, This can only mean that Nintendo discovered some people were using unauthorized devices somehow with their 3DS consoles and decided it should be prevented. Although the update says other small changes were made with the update, I think that was the primary reason the update was even made. The update info says at the very beginning that "Your Nintendo 3DS system and software are not designed for use with any unauthorized device and/or any unauthorized software."
The update info is located here.
All for now, Game On Gamers!