I think Sam Bradfield went on and implemented his ideas in a larger trimaran foiler, SCAT. I remember reading about the boat in som older "Multihulls magazine", but have not heard much about the project lately.
A quick web search gave these links:
http://members.aol.com/HYDROSAIL/http://www.multihulltechnologies.com/scat.htmhttp://www.ronbarrett.com/Scat.htmThe Hydroptere is just stunning, when it dont break down..
