I'd think you might have a few small security through obscurity settlements out on the continental shelves, but the problem with offshore stuff is that it still is in *someone's* backyard.
Back to the main topic: Really what I'd expect to see more of is floating cities. We've already got a fair amount of only moderately pie-in-the-sky stuff going on with that, often driven by the fundamentalist libertarians. Having handwavium to fill in some of the cracks would make it that much easier.
Edit: deleted "and you," - fragment of a lost thought-shard.
Back to the main topic: Really what I'd expect to see more of is floating cities. We've already got a fair amount of only moderately pie-in-the-sky stuff going on with that, often driven by the fundamentalist libertarians. Having handwavium to fill in some of the cracks would make it that much easier.
Edit: deleted "and you," - fragment of a lost thought-shard.