I want this game... it looks great (and quite unique!).
Make sure you buy bongos.
Just get Jungle Beat.
Yeah... I'd heard this would also be a bongo game, it makes sense.
As for the bongos... it'd be nice. Yeah, Jungle Beat and this. Donkey Konga? Doubtful. I don't really like any of the songs, for one... well, Donkey Konga 1 has some okay ones, but Donkey Konga 2 looks pretty bad songs-wise.
Military Pinball, only from Nintendo.
I want this game so much.
The Nintendo press page says that Odama supports the Gamecube microphone, but doesn't mention the bongos...