How much will the gap be closed in September alone?

[MrNathanDrake]

SickleSigh said:
Week MGS4 Debuted Ps3 sold like 440k consoles in 1 week and continued to outsell the 360 for most of the year iirc. Sales level off, Ps3 won't have 500k every week. The gap wont close up as fast as people think. At least I don't think it will.

The topic is: "How much will the gap be closed in September alone?"