We don't know a whole lot about this game just yet, but the gameplay trailer was just so damn interesting. Mission: Deep Sea is described as a 3D underwater multitouch game for iPhone and iPod Touch. According to the developer page, the premise sounds a bit like Avatar set under water:
For thousands years, mankind have trained animals for many purposes. With the final developments in nano-tech, the telepathic control of reptilians became possible.
You are the first soldier, who has the privilege of having a loggerhead sea turtle as a partner. During your various assignments you will see through turtle partner's eyes, and he will do what you wish to do.