If a bunch of us do what this guy did and attached it to a small boat, we could create a mobile island community and travel anywhere we like living independently.
It can be done quite cheaply and has the potential to grow into something quite good, imagine getting to visit lots of nice warm locations, growing and catching your own food, while still keeping a technologically advanced way of life, low power devices are easy to run, laptop with satellite internet pretty much covers communication and entertainment.
I've even got some ideas on how we can create lots of energy cheaply from the wind and waves by encircling the islands with energy harvesters, which would also have the added benefit of making the inner area calm.


