50% added is not double, 100% added is. UK is smaller than Japan.
Well okay, I said nearly doubles when it's closer to 50%. Still, 360 only doubles PS3 in Americas. Judging how PS3 rapes 360 in Japan, I think domestic association makes a big impact. Personally I'm more surprised that PS3 is 50% more popular then 360 in EMEAA. GT5 helped, a lot.
Also UK - 51k units sold this Week, Japan did 96k, after that there is France Italy and Germany(which sold 30-41k systems), then everyone else is less then half the size of UK. UK is a pretty big region in EMEAA, it's about as big as Italy and Germany combined. My point was that it's weirder to see PS3 have a 50% lead in EMEAA, with no domestic brand association, then to see 360 see a 100% lead with brand association, and Kinect pushing sales hard.