It was reported as being at the beginning of July.
Although that doesn't specify whether that's when production began to increase, or that a magical "produce 600k more consoles a month" button was pressed, instantly raising production to 2.4m/month.
I expect to see 1m/week sales once some of that extra production inventory is released around Black Friday.
When I crunched the numbers back in early July, I had sales pegged at about 43.5m sell through by 2008 year end, based upon current sales as reported by VGC as of the end of June and a production rate of 2.4m/month for the rest of the year (about 14.4m from July 2008 through end of Dec 2008).







