IIRC, it was originally developed as a prototype for the US Department of Defence, but when they weren't interested, the intellectual property was sold back to

IIRC, it was originally developed as a prototype for the US Department of Defence, but when they weren't interested, the intellectual property was sold back to the company that made it and they decided to try and take it to market for faster-than-sea-but-cheaper-than-airplane transoceanic cargo shipments. But now it sounds like they've pivoted to trying to make a flying cruise ship, which admittedly does sound awesome.