Those numbers look mostly reasonnable although I would say Wii sales in the US are probably going to be higher than that, maybe by a million or 2. I don't think the PS3 will sell as much as the Xbox360 in the US but it will come a lot closer than in 2007, it will however destroy the Xbox360 in Europe ( Fortress UK will fall too, if you look at the latest numbers, PS3 weekly sales are slowly catching up weekly Xbox360 sales there too).
Don't forget they don't list Japan sales so for WW sales of Wii you probably need to add like 4 Million units..