100 Million at the minimum. By then the 360 will have destroyed the Wii and PS3 and it will be the only console on the market! (for the 360 hopefuls)
It will be phased out in 2010 for the next xbox, sales will drop like a brick (just like when MS dropped the first xbox) but everyone will be happy cause Halo 4 will be released with the 720 (for everyone else)







