I think Xbox One stood at 1.5~1.7million by the end of November considering lack of launch countries/underwhelming sales in EU/yield issues. This will give PS4 about 0.5million lead in the race.
Do you really think MS was able to ship only 1m consoles for launch and 500k/700k the following week?
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I'd guesstimate XO is around 1.6-1.7m now on the higher end.
Last week's euro sales for XO were probably <=100k (UK was 20k). So assuming 500k or 600k last week in NA, we'd be at 1.6-1.7m. And that might be a high estimate for NA last week.
I'd expect PR from MS after Black Friday week if/when they pass 2m, but if takes very long after Sony's I think they won't bother.
You've got to keep in mind that continental Europe is very different from UK: there are many Day 1 Xbone editions still sitting on the shelves everywhere, the 20k consoles UK got last week are probably unsold stocks shifted from other EU launch countries to the UK.