Nice find. The guy flat out slays. He and Modica are definitely pushing the limits.
Here's another:
http://www.youtube.com/watch?v=YOH-V4n4Ffo
Utah Windsurfers, Kiteboarders, and Snowkiters Association
http://www.utahwindriders.com/forum/
http://www.utahwindriders.com/forum/viewtopic.php?f=4&t=7440