*Note* You cannot see the 3D effect with the angle of the camera shown on YouTube.
"Coming straight from the EA session about the development process behind Boom Blox, we thought it would be nice to inform everyone that there was a special “GDC Easter Egg” presented at the end of the session. It seems as though Head Tracking has been worked into the production of Boom Blox. Some things are unclear as to whether or not you can move around through previously recorded levels that you played through, or if they are custom built levels. The important thing is that it IS worked into the game and is available. Things needed by the player would be either LED glasses, or a wireless sensor bar, but by using just that and the controllers the same headtracking effect that we have seen in various online videos will be possible on the Wii."
That was fast I must say! Only a few months after Johnny Lee introduced 3D head tracking for the Wii, we have EA using the technique in Boom Blox. Hopefully more games that are released later this year will use this.