This week’s issue of the Famitsu, Japan’s biggest video game magazine, is due out tomorrow, but gaming geek @south1996](http://twitter.com/#!/south1996) appears to have made an early and pretty interesting snapshot: it’s the first picture showing the 3DS joystick add-on the gaming world has been speculating over for weeks.As you can see, the so-called “slide pad” is designed like a cradle that holds the lower part of the 3DS, making the device as a whole rather bulky (one Japanese game blog estimates that it makes the 3DS 1cm wider on the left, 2-3 cm on the right and 2cm to the bottom).