I want! We originally saw the Quad Ski in 2010 but it was still not in production. Looks like things have changed. You can now buy a Gibbs Quad Ski ($40,000) if you have that kind of money to throw around.
The Quad Ski will do 45mph on land and/or water. The Quad Ski is powered by a 4 cylinder 1300cc 16 valve DOHC engine that powers the rear tires and a jet drive. Video of the QuadSki in action after the break.