It isn't often that I get hyped about PCs for photographers, but Razer is one of those brands that's slowly winning me over. When going through this press deck, I audibly exclaimed, "What!" out loud.
Most Medium Format cameras don't have some sort of window on the back of the camera that you can peer into; that's one of the many way that they differ from 35mm cameras. So then the question becomes how to remember what film you've got in that camera? Well, the answer varies but the most consistent one that you'll find is that you should be using the little note holder on either the back of the camera or the film back depending on what you're using.