@SkyWhisperer - The breakaway cockpit is a good design idea I think for hydrofoil systems. I also think that it would be cool if they expanded on this concept and built a complete ejection system.
That way the cockpit would eject into the air in the same way that fighter pilots do when they choose to bail. I think it would be safer than simply having a breakaway cockpit, which is still going to cruise through the water at very fast speeds. An ejection system would allow the cockpit to parachute safely back to the water, at a slower speed I think.