Dual Snowboards is exactly what it sounds like. It is basically the equivalent of half of a snowboard on each foot, allowing you to perform all kinds of old and new tricks. It increases maneuverability in the snow, allowing you to better move around objects, as well as walk around without having to take them off. While it may not replace your regular snowboard, it offers up a pretty wicked alternative to a single snowboard, and there is a good chance it will improve your performance on the slopes.
Dual Snowboards $265