The next idea someone will have will be the ability to angle the 'kite'. This enables you to direct thrust when the wind isn't blowing the perfect direction. This might require something new and rigid, like a 'mast'.

So will these "kite boats" have engines as well, with kites being used to reduce the time for it cross the alantic and thus carbon emmissions. Or is the aim that the kite boats won't need engines.

How do you account for wind direction with something like that? With a sail you can steer into the wind.