Nyko simply replaced the nunchuk altogether—which isn't a bad idea since Wiimotes come bundled separately anyway. This new, wireless nunchuck interfaces with the Wiimote through an adapter snapped in the Wiimote's port, which makes way for 2.4GHz communication.

But we're with Kotaku on this one. We can almost never play the Wii as it is without replacing bundles of batteries and the last thing we need is another to worry about...only because we've never encountered a game that was hindered by wire tethering. But if Nyko ends up sticking a rechargeable battery in there, we'll talk.

No price or release info yet, but we'll get our paws on it at CES along with more details then. [ign via kotaku]