Will Halo Reach and Natal push 360 # 1 in Sept/Oct?

[jneul]

if you look at history add on's normally do not boots a consoles sales, especially when it's mid cycle, so my answer is no it will not boost sales by much, this also counts for ps move as well, also all the halo fan's already own a 360, the only way i see a boost is if some of them need/want to replace their consoles for the rumored slim