I hadn’t heard of this before, but apparently a britishman (Dom Mee) tried to cross the Atlantic in 2005, with a 14′ boat, propelled by a kite. His journey didn’t quite go as planned.
http://www.guardian.co.uk/environment/2005/oct/02/hurricanes2005.climatechange
http://www.youtube.com/watch?v=4wzGsMSimWQ
http://en.wikipedia.org/wiki/Dom_Mee
2005 – Attempted the first ever kite boat sail across the North Atlantic he endured hurricanes Irene, Katrina, Maria, Ophelia and finally Rita. On losing his sea anchor he was capsized 8 times before the vessel remained inverted. In mountainous seas and winds in excess of 70 knots waiting 30 hours for a rescue vessel in the perfect storm, he remarkably survived.
-Ken W