Like the article mentioned, coating a boat seems like it could be awesome. No drag, zip through the water. If it does work like that, I'd imagine we'll also start seeing it in competitive swim suits.
http://www.beilstein-journals.org/bjnano/content/pdf/2190-42... A good introduction, and from a journal without paywalls, and having quality papers on the subject.
The company replied to the suggestion saying yes, the technology has marine uses, and coating a boat with the compound does reduce the drag - the issue being the stability of the boat is reduced in turn which means the running speed needs to be increased to compensate.