Totally fair points. But if it is supposed to be for poor areas patenting the system seems like a counter productive choice. Yes chains are cheap but so would a new manufacturing process for belt drives be. The gears for belt drive can be cast from composite plastics making them relatively cheap. Old fasion belt splicing kits exist as well and could be implemented if you really wanted to avoid the split frame or they could develop a simple split frame conversion kit where you can cut out a section and clamp it back together with a bracket. It doesn't have to as complicated as one might think. Most of the conversion kits today are expensive because they also needs to look good and fancy, but for rural areas funktion is king and it could be made much simpler with two bracket and 6 bolts clamping the frame together. I just belive that belt has a lot more potential because it is really really durable and good for harsh environments with no lubricant needed.