From a Nyko spokesperson:

• Wider shape to fit hands comfortably
• Curved Z button to reduce finger slippage ("Kama side" image shows this)
• Grooves for a better grip
• Rubber battery cover
• New color scheme of C/Z buttons and analog stick

In other words, Nyko made their Kama more visually distinguished (in both textures and colors) from Nintendo's Nunchuk, though none of the controller's fundamental functionality was altered. Under this rubric, I'm pretty sure that we could release our own Wii pending it was covered in variegated, non-slip material.

The new controller has already been distributed to retailers, but we're guessing that you can still pick up the old version at a few spots if you move quickly. [BusinessWire]

Identical to the previously released versions (except for a wire sticking out of each), the wired Wing and Kama will each retail for $15. That's literally half the price of Nyko's $30 wireless versions, or $5 less than what Nintendo's officially licensed versions cost ($20). So buying these wired Nyko products won't save you a ton of money, but multiply the price times four controllers and it can bring down the cost of your hobby a bit.

Look for the wired Wing and Kama this January.