Ahaha, are these worldwide numbers? If so, Revolution could sell 5 million units in Japan alone in one year, if they take to it like they did with the DS, which I think they will. 360 outselling PS3? Unless the cost of PS3 is going to be insanely high, or they make some other kind of stupid error, that isn't going to happen.
Of course, it's still too early to make accurate assumptions, which I guess is why they got these out now, so they can say "heh, well things changed! doh! UALUEALUEALUEALUEALAUELALAUA" when they're proven wrong.
Xbox 360 didn't even do 1 million worldwide in its first launch holiday season, with Microsofts lack of direction and complete lack of upcoming compelling content I don't see many people going out of there way to pick up a 360, let alone enough to make it market leader.
As for Playstation 3 and Nintendo Revolution, well we don't even have release dates for those systems yet. They're only discounting them just because they can, it's easy to say something that doesn't exist yet will suck and have people believe you.
I'm not going to guess numbers, but i'll say from what we know now, if everyone pre-ordered a next gen console right now, PS3 would get the most, then Revolution a fair bit behind, but not far enough for a catch up to be impossible, then Xbox 360 a bit behind that. Another thing is that Xbox 360 and PS3 are predictable, most likely if someone doesn't plan on buying a 360 now they wont change their mind in the future, at least until they hit family friendly price points, which DOESN'T look like it's going to happen anytime soon. Revolution is still a question mark, and depending on the games could be a threat to PS3, and considering the target audience is EVERYONE, it has the most potential. After E3, I can make an accurate prediction.
PSP ever catching up to DS is just laughable.