as i have been checking out the new features of actionscript 3 and flex, i stumbled upon fwiidom.org. this site is run by joa ebert + thibault imbert, and their mission is full flash wiimote integration.
currently wiiflash supports multiple wiimotes and nunchuks, the classic controller, as well as pc sensor bars. all you need is a bluetooth enabled pc (or adaptor) and a wiimote.
the newest version is available from wiiflash or googlecode or you could get on the mailing list