Premise
Today's game is a Myst like adventure game. A completely 3D world for the player to interact with and solve puzzles. I will not come up with a story, just the game play characteristics.
Control
This game will be playable with the hands, voice, and face. Navigation will be done by hand movements. To turn, players swipe their hands across the screen like they are scrolling threw the Zune HD UI. To move forward, players grab forward and pull back towards themselves. To move backwards, you push away from you. The more exagerated the gestures, the more movement that is done.
To pick things up, you actually just have to reach and pick them up. To put them in your inventory, act like you placed them in your pocket. To use them, bring up the inventory menu by reaching in your pocket, the screen will display inventory, and you reach and grab what you want. You then use the item to interact with the environment.
Voice can be used to solve puzzles and interact with characters. Simple vocal commands can be given to characters and choices in dialogue can be chosen via vocal commands. An example of a vocal interaction with the environment would be a door locked via vocal and hand recognition. The player would act like they are placing their hand on the pad and then speaking in order to gain access.
Facial expressions can be utilized during character dialogue. The characters will pick up on your facial expressions as you play the game and react to them. Characters can also comment on your clothing in order to more immerse you in the experience.
The game would be fairly simple to develop and I would imagine we would see at least one game of this sort during Natal's lifespan.