I'd say about zero. Sony has sold over 1M in the US alone by now. It was probably ~900K in the first 24 hrs. Then, you have to add in the last 2 weeks of sales. MS, on the other hand, had ~1M for 13 countries. Your split should be more like 70% NA/30% EU. Which means ~60% in the US, or ~600K. I'm sure they got at least another 100K or so out there for Black Friday, so it's probably ~750K-800K by now. Of course, WW is going to be an even bigger gap.