Waterless Car Washing

Even though we've had monsoon like rain fall this summer, there might be a droughtastic period in our immediate future, especially if these 90 degree days keep up! Well, I came across a waterless car wash system available in this crunch. This is great year round though to conserve water and keep car wash chemicals out of run off. Has anyone already tried something like this? I don't wash my car nearly enough but I think this would be pretty cool. It's not too expensive either! Let me know!!!