During the Samsung keynote at CES, Microsoft and Samsung presented a video highlighting a display technology - Illumiroom -which appears to scan a room and sync projected output with a TV, allowing an enlarged, dimmer version of the playing environment to cover the surrounding walls and furniture. The effect is looks to be rather immersive -in the video, the snow effect stands as do the explosion trails coming out of the TV. Based on the demo video we could be looking at a compelling add-on for Xbox fans. Details should be forthcoming, for now there is a video showing the effect on YouTube.
"We were shown a video of someone playing Xbox games and making it seem like it's snowing in the room"