“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2
Two cameras is good, but dividing them up as we did with North America versus the rest of the world does dilute the spirit of the project.
Both cameras are going to have to spend some time in the U.S. for sure. Perhaps we can send one to Europe, and then one can go to Moose in Japan so we can say that both cameras are truly international.
I believe this has been done 10 times (1-6*, 7.1,7.2,8.1,8.2), and the cameras have come back 80% of the time (7.1 and 7.2 lost at sea?). Two seems prudent.
*6 - Camera 6 I believe had two cameras shipped but they traveled together and for this purpose I consider it 1 camera unit (per International Camera Trading Society, bylaw 78.3a).
However, like Steve says, let's pick names for them! These 9.1 and 9.2 names sound like software releases, heck these are analog cameras! Just no polarizing names such as, colour, organisation, aluminium