These little Unmanned Surface Vehicles (USVs) may be one way to enhance our Maritime Domain Awareness. They have already traveled a million nautical miles.
I could see a line of these in the Eastern Pacific, used to detect drug smuggling semi-submersibles.
Perhaps we will also see them used to cue Anti-Submarine Warfare Continuous Trail Unmanned Vessels.(ACTUV) or maritime patrol aircraft to the presence of submarines. It might not be too expensive to provide a line of them covering an entire trans oceanic route.
There will almost certainly be a war time role for launching these or something similar. Maybe a role for our buoy tenders.