I'm not quite sure about that, I'm currently working in BPO as an Amazon Transaction Quality Analyst but I haven't seen any announcement or update yet related to this rumor. There's one discussion about this in our
forum but none of our Internal Associates is still responding to it.
It will be a very good news for every if amazon will really accept bitcoin speculation because there are a lot of supporters here of cryptocurrency who wants bitcoins to be fully accepted on the entire nation.