if zelda did the usual 300-400k opening in japan, then NSMB numbers are definitely very impressive. FF13 numbers are definitely above 150k, and i gess its at about 200-250k. Healthy numbers. Taiko probably did around 70k which is impressive, and yeah its noo longer a failure and sure to get to the 400-500k level which is what taiko games usually get.
Now i really want to know abt hardware and the rest of software