I just read a canadian article that had factor 5 comparing sony's tilt controller to the wii's remote, and they actually said that in the game lair the controller was used in a way that would be exactly the same is if it was on the wii
. While i don't know about it being all the same i can say that nintendo didn't reveal everything about their system at first, because they knew a company like sony would just try to copy their ideas.