Wii Motion Plus seems good enough really.
I mean it can detect even subtle slices and every angle you move the Wiimote at (look at the sky diving intro from WS Resort). It can detect sword swings 1:1 which was always the holy grail of motion controllers right? The sword fighting in Wii Sports Resort is dead on.
And it ships to stores tomorrow. You'll be able to play it now.
I was initially blown away by Natal, but now the whole Milo thing does seem like a lot of smoke and mirrors, and honestly, the other applications MS showed for it ... I really don't want to play a racing game using my arms in mid-air with no tactile feedback or buttons.