http://www.amazon.com/Leap-Motion-Controller-interaction-Packaging/dp/B0176M1GHA/

Third-party reseller.

http://www.amazon.com/Leap-Motion-Controller-Gesture-Control/dp/B00E3CP9UM/

Sold by Leap Motion, has older packaging but the same hardware.

http://www.amazon.com/Leap-Motion-Controller-Packaging-Software/dp/B00HVYBWQO/

Sold by Leap Motion, has the newer packaging.