Actually, both sides are constantly working to break the record and have made neumerous attempts all over the world. The key is finding the right weather. For windsurfers, the wind has to crank and the water needs to be flat - a nautical oxymoron. It also must blow at just right direction without much of a shift - another tall order. Purpose-built crafts need less wind, but most of them have serious control issues. I just did a story for Outside Mag. about a British outfit called Speedrocket. They have been working on the design for several years and are confident that they can break 50 knots with their contraption. The skipper has some solid credentials with multihulls and the design looks good on paper, but they haven't gotten it going very fast in real life. Both sides are really enthusiastic and confident that their vehicle is the only way to fly, so to speak. Like I said: Time will tell.