Judging by this boxart taken from Gamestop, it looks like Nintendo are finally going to offer the Wiimote with Motion+ built in! What's more it comes bundled with this game! While the description of the title does say "Using the Wii Remote controller with the Wii MotionPlus accessory" the boxart also says "Wii Remote Plus included" which is the first time we've seen that term so that description could have been one given before Nintendo decided to bundle this.
Gamestop have it priced at $49.99 which is their price for most newly released Wii titles. I often wondered how Nintendo could sell this game at retail, while it does look a lot of fun and something I'd like to get it still looks like something you'd get on WiiWare. Maybe this is the only way to get this at the moment (possibly with the next Zelda title too) and should help the game sell as well as other peripheral based titles.
It should be noted that this is the first retail game published by Nintendo since Wii Sports Resort to need the Motion+ to play.
Here is some footage of the title in action: