Alleged Nintendo 3DS “Panda” development system on eBay. This looks an awful lot like the real 3DS dev system, with red accents on the back and a red 3D slider, and that sure does look like debug-type stuff on the screen, but of course there’s no way to be absolutely certain.
I suppose it’s possible the release of a system like this, which can play pre-release code, could lead to the discovery of a method of playing unsigned code (like homebrew) on retail systems? Maybe? Or it could just lead to having an awesome black and red 3DS.