That would be quite difficult. Not many consoles ever have done it. Wii and PS2 have done it. DS has of course done it numerous times.
But to think PS3 could do it is difficult. But basing it off it's first week numbers to generate what could potentially happen. If PS3 start selling 500k on a weekly basis then yea it's going to do that no problem. But we all know that isn't going to happen. Wait til we see how much PS3 falls in the next few weeks to really how it's going to do in the long run. I mean how do we not know everyone who was waiting for this pricedrop got it on the first week. I mean it did have an unusually large increase compared to others.
I think PS3 will have a better holiday season... maybe better than most think it but suggesting a million in one week now, with sales overall down in 2009 compared to last year, seems to be reaching a little too far..
I'm going to agree with others and think that the highest possible gearing everything is about 750k-800k which is very very good.