I think that you should add 1 more million to each handheld, becuase nintendo will increase production and the psp will have some killer apps that can be huge. I think that the 360 will not do too well in the end of the year(sounds strange but that what I think) Halo 3 will have too much enemies to do very high numbers, but I doubt that nintendo can increase the production enough for Wii to pass the 360. The PS3 and 360 will have similar holiday numbers. I see the PS3 to low, maybe it could reach the 9 mill number.
PS Vita and PC gamer
CPU Intel i5 2500K at 4.5 Ghz / Gigabyte Z68 Mobo / 8 Gb Corsair Vengeance 1600 mhz / Sapphire HD 7970 Dual X Boost / Corsair Obsidian 550d