In this video, I have connected a wiimote controller, via bluetooth, to my HP Touchpad running Cyanogenmod Android Alpha.

I am using an app called WiiController:
https://market.android.com/details?id=com.ccpcreations.android.WiiUseAndroid&...

and an emulator app called DroidEmuLite:
https://market.android.com/details?id=com.droidemu.game.lite&feature=sear...

I am also using a wiimote and the classic controller attachment to demonstrate how easy it is to connect and use to play Super Mario Bros. 3 for NES.