A lot of innovations. It sure beats the pants off of what the Yashica folks are trying to pull. But will it prove to be too much of a thing? With so many options available, it could be too fidgety and complicated for most folks. Are they asking for too many problems with all the variations of parts that must come together in perfect alignment to make a whole camera? How many people will be shooting enough different films at one time to justify owning more than one back?