Very unique case design.
The Motorola Marco was another one of the Newton Clones.
It had a very unique "book" design, that was never fully captured in any of the images I'd seen before I saw one in person.
Also the Marco possesed a Wireless modem, built into the unit. This wireless unit runs off of Ardis. You can still get wireless service for this unit now. However, the Marco was a NOS 1.3 machine (with modified ROMs), so it's usefulness would be slightly limited by it's OS.