New book predicts a healthy future.
Despite first y-o-y decline since Dec 2009.
Joins Wii Play etc on illustrious US list.
Nears record number of weeks on top.
Best-selling third-party Wii game ever.
NPD: Nobody can unseat Black Ops.
Ubisoft makes a killing on the dance floor.
PS3 Mass Effect 2 helps RPG into seventh.
And have for "five years running".
Plus: Just Dance 2 outsells Cataclysm.
Ubisoft: It's "revitalised" the music genre.
Chicken Payback! Kung Fu Fighting!
VV Brown struts her stuff.
Just Dance 2 is just third.
Ubisoft working day and night.