Well, to revive this a bit: Nintendo has now announced a new version of the Wii remote that has MotionPlus integrated into the basic controller. It's called "Wii Remote Plus" and looks almost identical to the basic Wii Remote.
Andriasang has a picture of the white, black, blue, and pink versions.
Neither a price nor release date have been officially announced yet. However, Gamestop recently advertised a game called FlingSmash priced at $49.99 and shipping in November. The box art they displayed (and have since pulled) promotes the game as being bundled with a black Wii Remote Plus. So we can probably expect this new controller to go on sale just in time for Christmas this year.
I guess with the coming release of Zelda: Skyward Sword, which requires MotionPlus, next year, Nintendo has finally decided to simplify this whole concept into what it should have been at the beginning. There's been speculation that Zelda would have a MotionPlus bundled, but now it looks like this new controller is more likely to be included with Zelda, if anything does get in the box. Maybe they'll have a limited edition, golden colored controller.