What is motion plus? Sounds interesting.
this is kind of a late reply but whatever.
It's a solid state gyroscope. Normal wiimote only has accelerometers.
I'd like to point out motion plus has nanotechnology
Edit: MAMS, scale 1 to 100 micrometers. Nanotechnology is kind of an overstatement it's micro, not nano.
Belated edit: it's not solid state either lol.... it's just really really tiny.