This is one of the few instances where I truly and fully agree with Ian, Sonic Team is showing that if they get off their lazy asses they can make something thats beyond passable and actually good and playable despite a could of flaws that irritated some people (Sonic and the Secret Rings) which was a nice recovery from the abysmal sonic the hedgehog on 360 and PS3. I really think that the Wii remote can be great with the flight mechanics of NiGHTS game IF Sonic Team nails the controls down nicely and gives you a good sense of freedom of flight then the game can be considered a success in the controls and game play categories, Sonic Team already proved that they can make above average graphics on Wii.
If the episodic content is true then that can nicely bring interest back into the game to increase its longevity. And I'm curious to hear whats the multiplayer going to be about.