From another site, the wheels are interchangeable, front to back, and made so that they can lay flat together, with little hub protruding from the center. Note the pic of the folded bikes, where the cassette is still attached to the rest of the bike where the wheels have been made invisible.

It would make a great full-size travel bike... except it doesn't look like total packed dimension would be much different than a conventional separable bike. That design as a mini-velo w/ 20" wheels would more pique my interest...