Don’t look now, but 3DS is becoming quite a feature-packed little gizmo. The newest addition, available beginning today for free download, is the Nintendo Video service. What is it? The basic concept involves Nintendo surprising you with an unpredictable, ever-changing selection of 3D short films, music videos and promotional material, sent to your 3DS via spotpass while your machine’s in sleep mode. How well this works out, of course, depends entirely on how Nintendo supports it. Time will tell. In the meantime, three of the four initial videos provide a few minutes of light, fun entertainment, all in 3D: