The simplest way to look at this is to compare to Zelda numbers.
Zelda did 2.0 million in VGC USA+Canada data. Launch numbers were ~445k. By the end of that week, Wii had under a 550k USA+Can base.
In Japan, Zelda debuted to 146k at Wii's launch. Galaxy debuted at ~255k in Japan.
I'd say its pretty reasonable to expect upto 775k (255/146)(445) for Galaxy's Americas debut.
Personally, I think it will be more like 600k.
We'll see soon...
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu







