Kojima Productions announced via Twitter today that Metal Gear Solid Snake Eater 3D will get a 3DS hardware bundle. The Tweet promised further details once they've been finalized.
Snake Eater 3D is due for release on March 8.
In other Snake Eater hardware news, Hori will be releasing an accessory set that lets you dress up your 3DS in Metal Gear colors. For details, see this story.