Microsoft says motion based interface like that seen in Project Natal will become the norm for games.  In statements made to Kotaku, Microsoft Game Studio’s VP Phil Spencer predicted that much like multiplayer evolved from niche feature to essential game play component, compatibility with motion control will take a similar path.  Spencer expressed amazement at the surge in support for Natal by developers and publishers.  [a]list daily reported the list of publishers currently working on projects for Natal, released by Microsoft at Tokyo Game Show.

Read more at Kotaku.