*UPDATE*
Sorry for the late update but here's what's new but kinda old now since the game has been out for a while:
Mario & Sonic @ the Olympic Winter games:
DS version has a unique story mode
Wii versions have boss battles
Now that's out of the way we have now gotten Silver added to the list for Team Sonic and for Team Mario it's none other then Bowser's son, Bowser Jr.
Now to let you know some of the bosses they are:
King Boo, Dry Bowser, Metal Sonic, Petey Prana (still can't spell that name right

)
Well that's all from Mario & Sonic at the Winter Olympic Games......I'll let you guys know if anything comes up from Super Mario Galaxy 2
