Under the General Terms paragraph "4. License" you essentially give to Amazon the right to all that your sell through them. That "right" allows them to use your trademark, materials, data or anything else you're selling.
So, if you're selling a gadget you patented or made yourself then Amazon can copy and reproduce in quantity whatever you're selling through them.
Will they do it? If the idea is good they will!
Anyone have any comments about this?