Considering that the difference between 01JUL2009 and 01NOV2009 is just ~6K visas (thinnest demand period in recent history), EB2ROW approvals continue to be very sluggish (just 21 trackitt approvals in July so far) with no recent pickup in pace, even EB2I approvals in July being very slow (less than 2K visas issued so far in July), many EB2I cases bogged down in RFE process (not yet received RFE, not yet replied to RFE etc) - CO is perhaps looking at a decent amount of leftover supply to be finished in the last VB of the year. Plus 01NOV2009 is a logical point given the RFEs - I am holding hope for a 01NOV2009 PD for EB2I in the Sept VB.
/Wishful Thinking!