Hydrophiles and ground-effect vehicles are two completely different things that work on two completely different principles. The screenoplane is actually flying and there is nothing in the water. The Hydrofoil reduces frictional resistance by lifting its hull from the water, but the lifting foils must remain in the water. The idea of a hydrofoil container ship is just the beginning. The ship would be too heavy to be lifted out of the water.

The power-to-weight ratio associated with removing the hull from the water will result in some sort of catch 22 situation where the ship has to be larger to accommodate all the extra engine power to put on the plane, but then again get too heavy and need more power......etc . etc. etc. Essentially, there's a weight limit on how big you can make a Hydrofoil-equipped boat, and that limit is waaaaaaaaaay below the tonnage of a container.

Hydroplaning container ships are unthinkable with today's technology. Either the engines would have to be much more powerful than they are today (to generate enough speed to raise the ship above the water in the first place) or a radically new and unpredictable technology would have to be found. Until then, pie in the sky. As I thought, even if you could get out of the water, the foils would have to be able to support the weight of the entire ship and its cargo.