Slightly off-topic, but unless you plan on releasing your game directly to the Wii, there's not much of a reason to add support for the Wiimote.
Why would that be useless? It only takes a few seconds to connect your Wiimote to the PC, you don't need a (fake) sensorbar to play the game, you just hold it like a NES controller.
@fogman: Well that doesn't sound too good, although, as old_bill has already said, it's not quite clear to me that the support of their controller is prohibited even when you state Nintendo's copyright.
