Its is so logical. There are a lot of surplus containers in the world; Moving art exhibitions is expensive. So why not put the art in shipping containers, with their own efficient transport infrastructure, and move them around the world.
It is "An urban, itinerant and adaptive art exhibit. Installations, sculptures, and paintings of the most innovative talents of the local and global artscape in many containers spread around town. A different work of contemporary art in each container, a different mix of artists in each city. Interactive containers connecting communities far away through art."