with all this wii-ing and controlling coming up i will stick to what a pro skateboarder said after they asked him about the new controls:
"if i wanna go skateboard, i simply go skateboard"

all this jiggling is nice but honestly the only real advantage is making you and your friends look retarded while playing multiplayer games. thats where this makes perfect sense and fun.
everything else is case to case dependand for me. controls should support the gameplay and not just be a selling point.
we will se what they will come up next. wii control was a bit dissapointing for me, but hopes are high this will change sooner or later.
cheers