Let me clear things up for some of you!...
This "game" will be availible at Launch in Japan, Europe and Australia.
Suprisingly, it HASN'T been officially confirmed by Nintendo to come to America, not at launch not later, it's still unknown.
I find this pretty frustrating, and yes, I too think it's a great deal!
It's a free game with the wiimote or a free wiimote with a game, however you want to look at it.
The official price for wiimotes in America will be $40 (NOT $35). Again- this game HASN'T been announced for America, but they (Japan, Europe and Australia) will get it for the price of a regular game (which would be $50) and is Wii Play + a Wiimote! So practically, if a wiimote normally costs $40 it'd only be like $10 extra to get this "game", which should also come in it's own box saying free wiimote included (NOT like an offer of "buy a wiimote and pay $10 extra, get the game".
Hope that helps!!