There was a special Ã¢â‚¬Å“GDC Easter EggÃ¢â‚¬Â presented at the end of the session with EA at GDC. 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 head tracking effect that we have seen in various online videos will be possible on the Wii.
The most popular of those online videos are those of Johnny Chung Lee, who made his “Head Tracking for Desktop Virtual Reality Displays using the Wii Remote” a few months ago.